Hi! I am a teenager and I wanna just sharp knives for fun, not professionally, so I just need a very cheap kit, in £ if possible... i just wanna try it out for a hobby as I’m super bored in quarantine Hope u reply loved the vid, cant buy from your store as it’s very expensive 😆 😉 😓 bye
Thumbs up basically increases how many people your video gets advertised to! So do thumbs downs, too lol. Both are equally beneficial to your video in the search engine. Comments, too, increase its SEO on youtube (Search Engine Optimisation)
For anyone wondering, the plastic bases on Naniwa Chosera stones are very easily removed with a heat gun and a couple of butter knives, with zero damage to the stone. I've removed them from my 400, 800 and 2000 grit stones. Heat the base until the adhesive is soft enough to slide in the butter knives and use them to slowly pry free the stone. It's that easy, and only takes a few minutes.
The best thumbs up asking method ever! Looking so cool and not demanding about it and letting people just throw it at you just because you're so cool about it!
My stones are all about 10”x3”x1+” and I enjoy starting at 320 then 400, 800, 1200, 2000, 3000, 5000, 8000, 12,000 grits. All water stones. After learning to sharpen over two years and enjoying your dedication to the art form of sharpening I am addicted to your channel. I watch it as I get up at 0400 and spend the first 4 hours of my day sharpening tool blades and on weekends-kitchen knives..(happy wife, happy life)... my latest addition is a late 1800’s sandstone peddle powered 30”D Sharpening wheel for my tools.
As someone who sharpens and trains people on doing so for a living, this is incredibly well done and very informative. I'd have enjoyed seeing more stones in the lineup but I'm impresses nonetheless. Very well done!
Excellent guide and starting points ! I'm already slicing paper and shaving hair against the grain, but still learned much from you,,, thanks, now I'm hooked on another hobby !
Thanks so much for making this video. It is thorough and well presented, and about as free of useless biases as possible. I have only begun sharpening chisels, axes, kitchen knives and other folding and fixed blade knives over the past year. In my limited experience, I have a beginning understanding of the differences in feel and feedback that you mention between various stones. Thanks for explaining the reasons for what I was sensing. You've encouraged me to learn more. Thanks again!
Hey friend, i truly appreciate your contribution to my channel. please reach out directly if you have any questions i can help with. you can reach me at ryky@burrfection.com as for your question about concave knives, i have couple of Japanese knives that are wide enough to be considered concave, and i generally sharpen them at a steeper angle, and to keep the bevel narrow. then i just make sure i polish and strop in long motion starting from the top of the bevel down to the cutting edge - one stroke at a time. it takes longer this way, but the results are better
I have used the Imanishi Tamago 4000, it pretty nice stone and if you ask the oddball of finishing the knife at the 3K-4K stone, I think it is useful for boning knife and knife that main purpose is for cutting fat and muscle. because highly polish knife don't cut as well as those finish knife that finishes around 3K.
Just joined the channel and love the videos ... thanks. Wanted to comment that you shouldn't be concerned about the longevity of the Shapton glass stones when flattened often. I bought my glass stones in 2011 to sharpen my hand planes and chisels. I've got about 22 hand-planes and countless chisels (woodworking hobby). The materials sharpened range from super soft vanadium coated steel in my antique planes up to cryogenically treated a2 tool steel (HRC 60-61) in my modern hand-planes. The stones get flattened several times per sharpening session, in other words ... a lot. I use a DMT diamond plate to flatten.. The glass stones are 1000, 4000, 16000. I just measured all three and after all that use they are roughly uniform at or near 4 mm (I subtracted the 5 mm glass). So they have only lost 1 mm in thickness ... awesome stones. That said, I would not recommend them for a beginner. They are too expensive to subject to the inevitable beginners learning mistakes. I bought a set of three Norton stones (the dual grit models) back in the day and they were great to begin on. Anyway, that's my 2 cents. I am going to try a Chosera 800 on your recommendation. Keep up the good work, you're doing a great job!
nice video! thanks for posting. I like the brick idea. Gotta try that. I have been sharpening on backs of plates for years. the back of ceramic plates works well too if your are at a friend's house cooking and they have horribly dull knifes. takes a minute though
I got myself the professional 3000 based on this video, mainly the statemeent that if you´d have to pick one stone you´d go with the choserea (professional) 3000. Didn´t regret that. It works so fast! Unless you have seriously mistreated blades, the professional 3000 is all you need for maintaining a sharp, working edge.
I remember one night after a punishing à la carte service in the high season (+300 hours that month) I finished up my station and brought out my sharpening stones. The satisfaction of putting a mirror polish on my trusty knives with the Kitayama 8000 is so soothing. It really eases the stress common in the industry. Thanks Burrfection for a fantastic channel feed and passionate content about knives and sharpening equipment. John
A double cut file is good for a brand new blunt edge. A chefic is great for finishing an edge. Naniwa is great for taking off the big chunks of burr, then i finish with a leather strop.
I've only tried a very small number of brands for stones but on your recommendation I decided to get the 320 and 1000 grit Suehiro Cerax stones and have to say they are wonderful while also being budget friendly. Still have my King 6000 grit for finishing.
Ten thousand thanks for this review of sharpening stones. I have felt that I have achieved good edges in the past but clearly, I am nowhere near your level of sharpening expertise. Again, thanks for this review!
Agree 100% with you on the Chosera 3000, it's a magic stone. Satys flat forever, doesnt wear down, produces allot of metal residue FAST, doesn't load up, big, heavy... It's amazing, a great finisher for most "everyday uses". Trully can't understand why Naniwa, or any brand for the matter, simply cannot come close to the quality of this synthethic stone not how Naniwa can't make the same with their other Chosera grits... The only stones that come close to me are the Chosera Glass (Kramer) 1000 and the 5000 (which comes pretty close and reminds me allot of the Chosera 3000). I just don't know if it's actually suited for sharpening, actual sharpening of a dull (not heavily chiped or anything, but really dull from normal usage) knife. Think you could make a video about the Chosera 3000 only and show how sharpen a dull hard knife using only the Chosera 3000, please? Also, it's your favorite stone, it deserver a video only for itself. Thanks.
Awesome roundup of the whetstone landscape, Ryky! Thanks so much for all your hard work this year. I have only you to thank for this wonderful new hobby. I have been enjoying my setup, all informed by your recommendations, and focusing on the Naniwa Chosera 800 (old style, with base) and the Suehiro Rika 5000. Yes, my wife has shed some blood these past few months, but all were very clean cuts and hopefully she's been better off than she would have with dull knives! (all tongue-in-cheek, BTW. I love my wife very much and wish to limit the harm to the extent possible!)... Happy holidays to you and yours. I'm looking forward to the next year's content.
Great video Ryky. I watched it a couple of years ago as well. Thank you for the detailed notes as well. That must have taken a while and they are very helpful.
Well before finding your videos I got a sharp pebble 1000/6000 combo kit and then also got a KDS king combo 1000/6000 combo. Also got a leather pad for stripping and after this video I got the erasers. I know they're all budget stuff but it's a good start Playing and practicing with an OXO good grips chef knife before using them on my nicer forged knives
I clean my stones with a magic eraser. Work wonders. Great, great video. I use this as somewhat of a go-to reference. Love your input bro. Thank you so much.
As a person who buys single bevel knives at any chance i can I'm so happy that you make specific recommendations for single bevel sharpening :D Thanks.
I have over a dozen stones…probably closer to two dozen….but my favorite of all time is my 30,000 grit shapton glass. That level of polish is totally impractical but seeing a bevel reflect light like the arch of the covenant never fails to make me smile. Not to mention it *literally* polishes wood. When I use my chisels and carving knives at 30,000 grit, they actually make the wood SHINE. It’s really impressive.
I'm not a chef, but I enjoyed the whole presentation and got some good info from it. Would you recommend your picks from the various categories for say a field knife (hunting, fishing, bushcraft)? Any specific stones/grits you'd recommend for that purpose (individual stones as well as a progression of grits)? Thanks
Thank you for doing this video, I'm new to both Japanese knives, and fairly new to using stones. I had no idea what to pick, saw this video, an I'm going with your recommendations. I'm getting; Suehiro CERAX soaking whetstone: Medium #1000 Chosera 3,000 Grit Stone Kitayama Fine Grain Sharpening Stone - #8000 Even if I decide on trying something different in the future, I feel like this will be a no regret decision. Without having any ideas from experience, it's very hard to make a solid decision on stones, and I have a limited budget.
I'm expert to the extent that I got a knife almost as sharp as an out-of-box Shun (which to me is very good). If you get the hang of sharpening, and go with the Zen of it (BE the edge, grasshopper!), you can get v-e-r-y sharp knives. And once sharp, you can easily keep them sharp with minimal time and effort using high grit to strop (or using a leather strop). It's a bit like learning to ride a bicycle, if that helps. Once you get it (I'm beginning to), it's a joy to use a sharp knife, knowing you can re-sharpen it anytime. (A hack: sharpen friends' really dull knives; you can't miss getting them sharper, and it's good practice, but check that the blade is not bent, first.)
55:38 Alternative: "Naniwa A-102" The rougher, heavy duty version that is faster and considerably larger. Measurements 170x55x30 mm. Had very good results from that one on stones 1000-8000 😉
Been using a rust eraser for about 9 years to clean my stones, got the idea from watching a japanese knife sharpening video. Guy used a rust eraser to clean his knife on one side jiff cleaning on the other. He then used it to clean his stones
Ryky your vids have been a great inspiration to my new Zen hobby, knife sharpening. Zen for me, mindfulness etc. I have King KDS 300 (for some old junkers/stud finders) and a 1000/6000. I Have sharpened, successfully, a pocket knife and a West-Cut k2 from the 1940s: carbon steel neck knife. They are now both very sharp, room to grow but very sharp. I typing this message with 3 bandages lol. Finger tips while sharpening. I will.take the lesson with a smile. Both knives cut right through the paper. Thanks again Ryky! Many years--->
Love the video thank you so much. I am having trouble finding some of the stones you recommended. The 8k -10k grit one you recommended (with the base). Also the red block along with the rust eraser. I wish I had found you when I lived in Sacramento I would have had you come to our restaurant. Sadly we had to close due to Covid.
Welcome back! It is so amazing to have you back with this show and I can't wait to see more!!! I learned a lot from your videos and I am a very pasionate cook aswel so I am looking forward to see where you go with this proram eager to learn more. I wish you the best luck and success no matter which way you want to go and I share my merits with you. The idea of traveling across the country and restaurants is just amazing I would love that too. Take a good care, hope to see you soon here again ;)
Thanks for the guidance! Ended up getting a suehiro deluxe 100 grit for thinning (not a fan) cerax 320, 1000, 3000, rika 5k a c12k/chug three cheap dual side 400/1000 diamond plate, 10x4 two sided flattening stone, rubber holder and wedges I used once for reference. After playing around for a couple hours I can get them sharper than my 2x72 at 8% speed with a 4000 grit then leather stropped. Thanks for all the info! If you would like a whetstone I cut from my rockhounding adventures to play with message me!
Hey Ryky, your videos/reviews are always fun to watch and really informative. I have a Super Stone 400, 1000 & 5000 and although I'm still fairly new to sharpening and have no experience on other stones, I completely agree with your comments about them. In no way I think you're "bashing" the series, They have good positive sides but their negatives are really blatant. I'm really excited to try other stones in the future!
Have you ever tryed the Belgian sharpening stones? The Blue one or the Coticule? I love them because you don't have to soak them. And they seem to work really well for in between longer sharpening sessions.
Excellent review and like your openess. I have watched several times. I keep putting thing in my Amazon basket then taking them out again. hell I have even bought some new knives. I keep going to buy some really nice stones then i remember you sharpening on a brick and save myself a fortune lol
I have done some research and thumbs up and thumbs down do help the ranking of videos. What most people don't get is that thumbs down do as much as thumbs up. TH-cam sees the EXTRA interaction a viewer does on a video as meaning it is a video that other people will want to interact with too. They don't care if it's positive or negative, just that people will interact because if they interact with a video they are spending more time on the video (likely) and therefore probably seeing more advertisements and THAT is what drives TH-cam rankings. Your channel is worth a lot a thumbs up. Your sharpening inspires me to try harder to do good hand sharpening.
Speed.. not too fast for most of us. The very fast stones can do damage quickly. The observations on the hardness of steel are nice. The Kramer’s May be easy to find in some markets. I like the big green brick from nanawa at 2000 needs some soaking but is great fun and polishes too. Super stones are very worthy... Shapton glass... they just work, well enough that most should need to look no further short of HAD (hone acquisition disorder).
I recently found a small sharpening company called Sen'ie-Ka and they have been great. They hand make them and they come with some awesome hard wood bases.
Cerax 1k, to me, is among the best all around stones on the market. I bought a Chosera 1k to compete and it’s just not as good. Also, at least in the particular Chosera 1k I bought, I had to remove some material off the top to get it going. Felt like plastic on the stone and it wasn’t cutting well so I took my atoma to it for a minute or so. Underneath was the true grit rating so just be aware that you may need to shave a layer off the top.
Good video. I agree on your recommendations. I bought a rika 5000 and at first, I did not like it. But after using it a while I went from not liking it to loving it. I think when you first get this stone you need to "break it in". Also on the Chosera 3000 it needs to be "broken in" as well. At first, the Chosera would load up and I had to keep cleaning it. Now it works great. Lastly, I just purchased a white 8000 as well. I have the kit 8000 and love it. But someone I follow on the straight razor scene, loves the white 8000 you just reviewed. I do not think he has the kit 8000. Once it comes in I will let you know what I think. Lastly, I just bought a shapton pro 12000 for razor sharping. That is one HARD stone. I am not sure about the results yet. I have been using a 140X power microscope on my razors to see the results and the jury is still out. The kit 8000 does a good job but it does not make the razor "shave ready". The stones you did not review was the King 1000 and 6000. I like both of these stones but I agree the Cerax is better. The King 6000 feels similar to the Kit 8000.
As someone who is looking to buy a set of well feeling water stones i really appreciate this video. I wanted to go for the naniwa 400 but i might get the cerax instead. You give a good wide range of stones to research
Thanks Ryky, for this long but very useful review - no stone unturned! The Chosera 800 alone does everything I need to keep our kitchen knives sharp. Even better, since I started using your buffalo hide strop.
One of the best informative videos so far. Being all of them very good, this exposition is awesome --I like loooong videos--. I would love to see you also commenting about Naniwa Diamond Stones. Thanks Ryky.
Very good video... Glad to hear from your experience after experimenting with all these stones, and I know you did it seriously. Will help a lot of people for choosing what they want at different grit level!
Thank you for your videos! So much information! I purchased an Enso prep knife on your recommendation and love it! Thank you! A couple of questions about sharpening stones: 1) I I am only using one stone, what grit should I be getting? 2) what is the difference between a splash and go and a soaking stone? Is there a big difference in performance? Do the stones indicate if they are splash and go, or soaking stones? 3) Don’t mind spending to get a good stone to keep the knife sharp, just as a beginner, seems like there are so many selections. Thanks for your help!
How do you feel about the Shapton traditional stones & how they measure up to the glass? I’m a longtime chef who just bought my first real Japanese knife.( I don’t count my Shun) Never really put much thought into my knives until recently & stumbled into more traditional Japanese knives as an option. Very excited to jump in! Thanks for the great content. I find the detail & thoroughness in your videos most helpful. Cheers!
Can you review a King Hyper 1000? The harder one. I’ve heard a lot of positive reviews and feedback about it, some saying it’s better than the Cerax 1k. I’m curious if this is true. If you can, I’d appreciate it, if not, I understand. Keep up the great channel!
Great video Ryky. On your advice I purchased the Chosera 800 and 300 and wow they are fantastic. I asked a friend in Kobe to buy them for me and on send to New Zealand. In my ignorance I thought the Chosera 400 would complete my set. How wrong was I. After starting a dozen sharpenings the 400 has dished noticeably so I won't use it again until I've flattened it. I've found the 400 is soft compared to the 800 and 3000. My knives are now razor sharp after using the 800 and 3000. Thank you for your great vids. Manuia le Kerisimas to you and family from Aotearoa 😎
This is a bit "misleading." You do get a small "boost" in interactivity, but no where near as much as amount of comments, viewer retention, how many videos are seen in a time frame, and subscriber count. This is why a lot of YTers push giveaways through comments or close their video with a question (Such as, Tell me what you guys want to see more of" or "What do you think about X or Y? Comment below!) What "Likes/Dislikes" do is help the system personalize and prioritize a person's tastes for later use and not a general metric of exposure. For instance,; let's say I watch a 20 minute video about a baking show because I like that specific show. YT then says "this guy likes baking" and pushes a ton of baking channels. Now, I will most likely skip over these videos and channels because I have no interest, so me "disliking" them would put them on a lower priority of when I search, but nothing for "unexposed audiences." When I "like" another video of the same baking show, it starts to push videos related to that show (And not just baking) to push them up on searches. YT also considers most subscribers as them "auto-Liking" a content creator's videos. This is unaffected if the subscriber "dislikes" the video as it could be just a criticism of the video and not the content creator as a whole, just that video has a lower priority if I choose to search for it using related tags. Again, it's not seen as a big deal because subscribers receive notifications and have quick access to your channel. So if you want a channel to grow by the algorithms standards; the important thing is engagement through retention and comments/interactivity. If I watch a 10 minute video of a knife unboxing followed by 60 minute video of Whetstones, subscribing, and leaving a comment: that's going to be far more beneficial than if someone stumbles upon a video and just leaves a like after watching 2 minutes. This is why creators are now saying that reminder to leave a like at the end of the video instead of, previously, which was the beginning. That retention is far more important and the "like" is if they want to see more content similar to it.
I like the glass 4k but you're right you have to make it fit. I use it as my final stone after the cerax 1k on many knives but I also use it as a step before the glass 10k for certain knives
Had my cerax 700 now for roughly a dozen sharpenings and while I usually agree with your assessments, I think the 700 is a nice stone. It's quick enough for my taste but I'm not really into speed as an attribute to make or break a stone. It feels like a slightly coarser cerax 1k to me it's still pretty hard no fear of gouging it doesn't build up tons of slurry which I like and the end result is very clean ! I'd love to see you do a full review on a 61+ knife I would like to hear your comments !
I really wish I had seen this before I bought the stones I did. (I got the shampton 220, super stone 1000 and super stone 3000. Shampton 220 for really dull knives and establishing/refining bevels (I went for 220 instead of 320-400 because I am getting into knife making). Super stone 1000 for normal sharpening. Super stone 3000 for polishing/stropping) I hope what I picked out will still serve me well but I definitely think I could've picked a better set of stones out.
Hi I enjoy your videos, I only have a very small kitchen so what few stones should I buy ? I don’t know anything about stone but I would rather have a few high quality ones than a lot of cheap ones.
Do you have a video about dressing nagura stones? I've read that you should have one same grit or higher than the stone you're using it on. And that it's more for the high grit polishing stones.
Recently, I made a pilgrimage to Korin, a Japanese knife store in NYC. Their strong advice was not to soak even "soaking" stones of over 2000 grit. For double stones they recommend soaking the 1000 side, but only splash the 3000 or 6000 side. They say the finer stones will crack if you really soak them. That coincides with some stuff I hear from others who complain about certain stones cracking?
Well I sat here and watched the entire video. You have a new subscriber. You kept it interesting and thanks to you I have a bit of knowledge on stones. Thank you.
Ryky, thank you for the review. I like seeing what you think about different stones. I think you provide really good information, also I like that you try to be as unbiased as possible. I'm glad I found your channel, you've helped me a lot.
Woooow, thanks dude! that's very practical, i learned a lot here. But as a rookie, can I ask a question？ Why there are so many black scratches on the surface of the whetstone when I use my new 6000 whetstone to sharpen knife? Even if I rub it with my hand and water, they won't go away completely. I had to scrape it with a flattening stone. Does that mean the whetstone is of poor quality? Am I being cheated by the merchants？
That's a good collection of stones, I dread to think how much all that was...!!! At the risk of insulting your professionalism, I recently bought a 'good' German combination stone, 3000/8000. I gave it a brief run with a hunting knife, I didn't get the impression the 8000 side would polish as I expected it to. ?.? Would this be correct..?? Great video and very interesting, nice to see so many quality stones. Thank you for your time and effort.
Hey Ryky! Happy holiday and Thank you again for the awesome video, very informative as always. It’s the holiday season and I’m looking to invest in another stone. I have a Misono UX Gyuto and Slicer, and currently sharpening on a 800 grit Naniwa Chosera probably once per week. Would it be better to invest in a 3000 grit or 1000 grit stone, or even both? OR a 1000/6000 king combo stone? So many stones, so many options- any advice would be appreciated. Thank you
Good morning I have to thank you for your advice so many opinions on stones lots of people reviewing l have changed my mind a lot of times. I have decided to start off reasonably priced since my daughter will be buying me this starter l am going to tell her Naniwa stone holder with a 2 sided 1000 3000 Naniwa super stone. Do you think this is a good choice. I have not started my Japanese knife collection yet
wow I wish I saw this video before I got the naniwa ss 400, I learnt to sharpen on that stone and still use it a lot but always felt it took way to long and is for some reason more difficult to use but somehow I thought that was normal
my trusted knife store bur.re
Thoughts on the Shapton glass and/or Shapton Pro 16,000 and 30,000 ?
Hi! I am a teenager and I wanna just sharp knives for fun, not professionally, so I just need a very cheap kit, in £ if possible... i just wanna try it out for a hobby as I’m super bored in quarantine
Hope u reply loved the vid, cant buy from your store as it’s very expensive 😆 😉 😓 bye
Men i dont know you but you totally look , act, speak and intonate pure gay😁 Or maybe you're just very feminine guy..
@Grey Roger 😆 hack CR7’s profile and make a private vid of it
Thumbs up basically increases how many people your video gets advertised to! So do thumbs downs, too lol. Both are equally beneficial to your video in the search engine. Comments, too, increase its SEO on youtube (Search Engine Optimisation)
(* = best, + = good)
1:04 +Atoma
1:22 Shapton Glass 120
2:03 *Shapton Pro 120
2:29 SUMMARY (Ultra Coarse)
3:34 Sharp Pebble 400
4:13 Shapton Pro 320
4:42 +Shapton Glass 320
5:05 *Suehiro Cerax 320
5:51 Naniwa Chosera 400
7:16 Naniwa Super Stone 400
8:20 Kramer 400
9:23 SUMMARY (Coarse)
10:11 *Naniwa Chosera 800
10:59 Shapton Glass 500
11:30 Naniwa Super Stone 800
13:07 Suehiro Cerax 700
14:16 SUMMARY (Sub-1000)
14:53 Whetstone Cutlery 1000
15:22 +Shapton Glass 1000
16:07 Naniwa Chosera 1000
16:53 *Suehiro Cerax 1000
18:03 Naniwa Super Stone 1000
19:28 Shapton Pro 1000
20:37 Kramer 1000
21:45 SUMMARY (1000)
24:00 Kramer 3000
25:01 Shapton Glass 2000, 3000, 4000
27:48 Naniwa Super Stone 3000
29:19 Shapton Pro 2000
30:28 *Naniwa Chosera 3000
31:18 SUMMARY (2000-4000)
33:23 *Suehiro Rika 5000
34:07 Naniwa Super Stone 5000
35:30 Naniwa Chosera 5000
36:53 Shapton Pro 5000
38:31 *Kramer 5000
40:00 Shapton Glass 6000
40:48 Irashiyama 6000
42:28 SUMMARY (5000-6000)
43:30 *Kitayama 8000
44:25 Naniwa Super Stone 8000
45:00 Naniwa Snow White 8000
46:10 Shapton Glass 8000
48:06 Shapton Pro 8000
48:46 +Shapton Glass 10000 (if price doesn't matter)
49:38 +Gokunyo? 10000 (if price doesn't matter)
50:53 SUMMARY (8000-10000)
52:31 CONCLUDING THOUGHTS
53:09 Suehiro naguras
54:00 Sabitoru rust eraser
55:30 Naniwa dressing stone
56:15 SUMMARY (Accessories)
57:07 What's next (2018)
57:49 BRYKY!!
59:31 Strops
1:00:50 Dalstrong discount code
THANK YOU ! i need to get you something for this!
My pleasure, Ryky… glad I could give something back. But… wudja have in mind!? 😆
Respect!
You are a legend
Bradley Gong = *
For anyone wondering, the plastic bases on Naniwa Chosera stones are very easily removed with a heat gun and a couple of butter knives, with zero damage to the stone. I've removed them from my 400, 800 and 2000 grit stones. Heat the base until the adhesive is soft enough to slide in the butter knives and use them to slowly pry free the stone. It's that easy, and only takes a few minutes.
The best thumbs up asking method ever! Looking so cool and not demanding about it and letting people just throw it at you just because you're so cool about it!
My stones are all about 10”x3”x1+” and I enjoy starting at 320 then 400, 800, 1200, 2000, 3000, 5000, 8000, 12,000 grits. All water stones. After learning to sharpen over two years and enjoying your dedication to the art form of sharpening I am addicted to your channel. I watch it as I get up at 0400 and spend the first 4 hours of my day sharpening tool blades and on weekends-kitchen knives..(happy wife, happy life)... my latest addition is a late 1800’s sandstone peddle powered 30”D Sharpening wheel for my tools.
I have watched this video at least a dozen times beginning to end. Thanks. There is so much great information here
thank you !
As someone who sharpens and trains people on doing so for a living, this is incredibly well done and very informative. I'd have enjoyed seeing more stones in the lineup but I'm impresses nonetheless. Very well done!
Justin C a guy pulls out more whetstones than anyone alive owns and you want him to get more examples?!?!? Jeez lol
@@bigfrank2959 🤣 lmao true story, wasn't sure if it was sarcastic humor??
I;d have enjoyed seeing more whetstones then there are in existence but his collection is still kind of impressive
@@craggerrs Kind of ????
Yeah, what everyone else said!
Excellent guide and starting points ! I'm already slicing paper and shaving hair against the grain, but still learned much from you,,, thanks, now I'm hooked on another hobby !
Best video to ever watch if you’re evaluating or considering buying sharpening stones. A classsic
Incredibly helpful. I used to be intimidated by the cost and variety of stones. This really helps narrow down my choices.
Thanks so much for making this video. It is thorough and well presented, and about as free of useless biases as possible. I have only begun sharpening chisels, axes, kitchen knives and other folding and fixed blade knives over the past year. In my limited experience, I have a beginning understanding of the differences in feel and feedback that you mention between various stones. Thanks for explaining the reasons for what I was sensing. You've encouraged me to learn more. Thanks again!
I'm binge watching your videos as I find your voice soothing...
I like how your videos are information rich, clear and honest. Really good work.
thanks Joel, just doing my best
I just found you yesterday, and I already watches 7 of your videos. Just great, thanks.
Awesome, thank you!
I learned a lot from this video, so thank you. Question though: have you ever sharpened a convex edged knife? If so, any tips?
Hey friend, i truly appreciate your contribution to my channel. please reach out directly if you have any questions i can help with. you can reach me at ryky@burrfection.com
as for your question about concave knives, i have couple of Japanese knives that are wide enough to be considered concave, and i generally sharpen them at a steeper angle, and to keep the bevel narrow. then i just make sure i polish and strop in long motion starting from the top of the bevel down to the cutting edge - one stroke at a time. it takes longer this way, but the results are better
I have used the Imanishi Tamago 4000, it pretty nice stone and if you ask the oddball of finishing the knife at the 3K-4K stone, I think it is useful for boning knife and knife that main purpose is for cutting fat and muscle. because highly polish knife don't cut as well as those finish knife that finishes around 3K.
This is an insanely helpful video....should a million thumbs up.
Just joined the channel and love the videos ... thanks. Wanted to comment that you shouldn't be concerned about the longevity of the Shapton glass stones when flattened often. I bought my glass stones in 2011 to sharpen my hand planes and chisels. I've got about 22 hand-planes and countless chisels (woodworking hobby). The materials sharpened range from super soft vanadium coated steel in my antique planes up to cryogenically treated a2 tool steel (HRC 60-61) in my modern hand-planes. The stones get flattened several times per sharpening session, in other words ... a lot. I use a DMT diamond plate to flatten.. The glass stones are 1000, 4000, 16000. I just measured all three and after all that use they are roughly uniform at or near 4 mm (I subtracted the 5 mm glass). So they have only lost 1 mm in thickness ... awesome stones. That said, I would not recommend them for a beginner. They are too expensive to subject to the inevitable beginners learning mistakes. I bought a set of three Norton stones (the dual grit models) back in the day and they were great to begin on. Anyway, that's my 2 cents. I am going to try a Chosera 800 on your recommendation. Keep up the good work, you're doing a great job!
As always your videos are alot of help to shine the light on the path of sharpening
nice video! thanks for posting. I like the brick idea. Gotta try that. I have been sharpening on backs of plates for years. the back of ceramic plates works well too if your are at a friend's house cooking and they have horribly dull knifes. takes a minute though
Try it and see
I got myself the professional 3000 based on this video, mainly the statemeent that if you´d have to pick one stone you´d go with the choserea (professional) 3000. Didn´t regret that. It works so fast! Unless you have seriously mistreated blades, the professional 3000 is all you need for maintaining a sharp, working edge.
I remember one night after a punishing à la carte service in the high season (+300 hours that month) I finished up my station and brought out my sharpening stones. The satisfaction of putting a mirror polish on my trusty knives with the Kitayama 8000 is so soothing. It really eases the stress common in the industry. Thanks Burrfection for a fantastic channel feed and passionate content about knives and sharpening equipment. John
A double cut file is good for a brand new blunt edge. A chefic is great for finishing an edge. Naniwa is great for taking off the big chunks of burr, then i finish with a leather strop.
I got an old thick King combo stone and Atoma coarse to flatten. It’s all I need. But nice to know I can up my game with all these choices. Thank you
I've only tried a very small number of brands for stones but on your recommendation I decided to get the 320 and 1000 grit Suehiro Cerax stones and have to say they are wonderful while also being budget friendly. Still have my King 6000 grit for finishing.
Ten thousand thanks for this review of sharpening stones. I have felt that I have achieved good edges in the past but clearly, I am nowhere near your level of sharpening expertise. Again, thanks for this review!
Amazing video. Really inspiring to me, a beginner. I find all the answers I need in this video. Saving me hours of time. Thanks so much.
Smith sharpening stones and Arkansas sharpening stones are my absolute favorite to sharpen my knives I get a perfect edge every time
Agree 100% with you on the Chosera 3000, it's a magic stone. Satys flat forever, doesnt wear down, produces allot of metal residue FAST, doesn't load up, big, heavy... It's amazing, a great finisher for most "everyday uses". Trully can't understand why Naniwa, or any brand for the matter, simply cannot come close to the quality of this synthethic stone not how Naniwa can't make the same with their other Chosera grits... The only stones that come close to me are the Chosera Glass (Kramer) 1000 and the 5000 (which comes pretty close and reminds me allot of the Chosera 3000). I just don't know if it's actually suited for sharpening, actual sharpening of a dull (not heavily chiped or anything, but really dull from normal usage) knife. Think you could make a video about the Chosera 3000 only and show how sharpen a dull hard knife using only the Chosera 3000, please? Also, it's your favorite stone, it deserver a video only for itself. Thanks.
Thank you for the video, I just ordered all your top picks..
Thank you this review, I am new to the knife sharpening world .
Awesome roundup of the whetstone landscape, Ryky! Thanks so much for all your hard work this year. I have only you to thank for this wonderful new hobby. I have been enjoying my setup, all informed by your recommendations, and focusing on the Naniwa Chosera 800 (old style, with base) and the Suehiro Rika 5000. Yes, my wife has shed some blood these past few months, but all were very clean cuts and hopefully she's been better off than she would have with dull knives! (all tongue-in-cheek, BTW. I love my wife very much and wish to limit the harm to the extent possible!)... Happy holidays to you and yours. I'm looking forward to the next year's content.
hey William, Happy New Year and catch you in 2018! say HI to the wifey!
Great video Ryky. I watched it a couple of years ago as well. Thank you for the detailed notes as well. That must have taken a while and they are very helpful.
Well before finding your videos I got a sharp pebble 1000/6000 combo kit and then also got a KDS king combo 1000/6000 combo. Also got a leather pad for stripping and after this video I got the erasers.
I know they're all budget stuff but it's a good start
Playing and practicing with an OXO good grips chef knife before using them on my nicer forged knives
I clean my stones with a magic eraser. Work wonders. Great, great video. I use this as somewhat of a go-to reference. Love your input bro. Thank you so much.
As a person who buys single bevel knives at any chance i can I'm so happy that you make specific recommendations for single bevel sharpening :D Thanks.
Wow! Depth of knowledge apparent!
Thank you for sharing.
I have over a dozen stones…probably closer to two dozen….but my favorite of all time is my 30,000 grit shapton glass. That level of polish is totally impractical but seeing a bevel reflect light like the arch of the covenant never fails to make me smile. Not to mention it *literally* polishes wood. When I use my chisels and carving knives at 30,000 grit, they actually make the wood SHINE. It’s really impressive.
That stone will make a hand plane make full with, full length shavings you can read newspaper through.
love my shapton pro 12000 for polishing after sharpening my knives with a king 800
Really thanks for this detailed comparison.
It's really interesting and informative.
I loved it.
I'm not a chef, but I enjoyed the whole presentation and got some good info from it.
Would you recommend your picks from the various categories for say a field knife (hunting, fishing, bushcraft)? Any specific stones/grits you'd recommend for that purpose (individual stones as well as a progression of grits)? Thanks
Thank you for doing this video, I'm new to both Japanese knives, and fairly new to using stones. I had no idea what to pick, saw this video, an I'm going with your recommendations. I'm getting;
Suehiro CERAX soaking whetstone: Medium #1000
Chosera 3,000 Grit Stone
Kitayama Fine Grain Sharpening Stone - #8000
Even if I decide on trying something different in the future, I feel like this will be a no regret decision. Without having any ideas from experience, it's very hard to make a solid decision on stones, and I have a limited budget.
I'm expert to the extent that I got a knife almost as sharp as an out-of-box Shun (which to me is very good). If you get the hang of sharpening, and go with the Zen of it (BE the edge, grasshopper!), you can get v-e-r-y sharp knives. And once sharp, you can easily keep them sharp with minimal time and effort using high grit to strop (or using a leather strop). It's a bit like learning to ride a bicycle, if that helps. Once you get it (I'm beginning to), it's a joy to use a sharp knife, knowing you can re-sharpen it anytime. (A hack: sharpen friends' really dull knives; you can't miss getting them sharper, and it's good practice, but check that the blade is not bent, first.)
It's Whet dream seeing all those stones. Nice vid.
55:38 Alternative: "Naniwa A-102"
The rougher, heavy duty version that is faster and considerably larger. Measurements 170x55x30 mm. Had very good results from that one on stones 1000-8000 😉
Been using a rust eraser for about 9 years to clean my stones, got the idea from watching a japanese knife sharpening video. Guy used a rust eraser to clean his knife on one side jiff cleaning on the other. He then used it to clean his stones
wow, such a comprehensive whetstone video - much appreciated!
I have purchase your Naniwa 5 piece pro daily sharpening kit. Comes with the P320 and the P350 I hope I have made a good choice.
You should try a naniwa green brick of joy. Hand feel and feedback is incredible
I agree, the green brick also polishes really nice for a 2K
I just posted the same (basically). I love the green brick of joy!
Ya learn to work the mud and you can get a really nice 4k Kasumi finish. It is by far my favorite soaking stone
Ryky your vids have been a great inspiration to my new Zen hobby, knife sharpening. Zen for me, mindfulness etc. I have King KDS 300 (for some old junkers/stud finders) and a 1000/6000. I Have sharpened, successfully, a pocket knife and a West-Cut k2 from the 1940s: carbon steel neck knife. They are now both very sharp, room to grow but very sharp. I typing this message with 3 bandages lol. Finger tips while sharpening. I will.take the lesson with a smile. Both knives cut right through the paper. Thanks again Ryky! Many years--->
Incredible review, the very best I have ever seen anywhere, thank you for what you do, all the very best.
Love the video thank you so much. I am having trouble finding some of the stones you recommended. The 8k -10k grit one you recommended (with the base). Also the red block along with the rust eraser. I wish I had found you when I lived in Sacramento I would have had you come to our restaurant. Sadly we had to close due to Covid.
Thank you for your vídeos been watching and learning a lot. Appreciate your advice on all of these stones.
Welcome back! It is so amazing to have you back with this show and I can't wait to see more!!! I learned a lot from your videos and I am a very pasionate cook aswel so I am looking forward to see where you go with this proram eager to learn more. I wish you the best luck and success no matter which way you want to go and I share my merits with you. The idea of traveling across the country and restaurants is just amazing I would love that too. Take a good care, hope to see you soon here again ;)
The Zwilling stones are available individually. However they are close to $!00/stone.
Thanks for the guidance! Ended up getting a suehiro deluxe 100 grit for thinning (not a fan) cerax 320, 1000, 3000, rika 5k a c12k/chug three cheap dual side 400/1000 diamond plate, 10x4 two sided flattening stone, rubber holder and wedges I used once for reference. After playing around for a couple hours I can get them sharper than my 2x72 at 8% speed with a 4000 grit then leather stropped. Thanks for all the info! If you would like a whetstone I cut from my rockhounding adventures to play with message me!
Hey Ryky, your videos/reviews are always fun to watch and really informative. I have a Super Stone 400, 1000 & 5000 and although I'm still fairly new to sharpening and have no experience on other stones, I completely agree with your comments about them. In no way I think you're "bashing" the series, They have good positive sides but their negatives are really blatant. I'm really excited to try other stones in the future!
I can see I have a lot to learn..
i'm always learning, so no worries there.
Have you ever tryed the Belgian sharpening stones? The Blue one or the Coticule? I love them because you don't have to soak them. And they seem to work really well for in between longer sharpening sessions.
Excellent review and like your openess. I have watched several times. I keep putting thing in my Amazon basket then taking them out again. hell I have even bought some new knives. I keep going to buy some really nice stones then i remember you sharpening on a brick and save myself a fortune lol
Hey, you are the best channel for this kind of stuff.
What is your day job? are you a full time youtuber?
Full time dad, part time youtuber
Jan Christian, nailed it.
I have done some research and thumbs up and thumbs down do help the ranking of videos. What most people don't get is that thumbs down do as much as thumbs up. TH-cam sees the EXTRA interaction a viewer does on a video as meaning it is a video that other people will want to interact with too. They don't care if it's positive or negative, just that people will interact because if they interact with a video they are spending more time on the video (likely) and therefore probably seeing more advertisements and THAT is what drives TH-cam rankings.
Your channel is worth a lot a thumbs up. Your sharpening inspires me to try harder to do good hand sharpening.
thanks for all of the info. i had no idea that was the case. keep working on your craft, and your channel will outgrow mine.
Would I be good with this combo? Cerax 320, Cerax 1000 and Chosera 3000?
Speed.. not too fast for most of us. The very fast stones can do damage quickly. The observations on the hardness of steel are nice. The Kramer’s May be easy to find in some markets. I like the big green brick from nanawa at 2000 needs some soaking but is great fun and polishes too. Super stones are very worthy... Shapton glass... they just work, well enough that most should need to look no further short of HAD (hone acquisition disorder).
I recently found a small sharpening company called Sen'ie-Ka and they have been great. They hand make them and they come with some awesome hard wood bases.
just purchased the Chosera 800 and 3000 as my first stones. ur videos are so awesome. i want all of your knives!!!! lol
wow..... you are in for it. enjoy!
i hope amazon gives u credit for the links. i purchased your fav 8000 as well. What would u recommend for having just 3 stones
Cerax 1k, to me, is among the best all around stones on the market. I bought a Chosera 1k to compete and it’s just not as good. Also, at least in the particular Chosera 1k I bought, I had to remove some material off the top to get it going. Felt like plastic on the stone and it wasn’t cutting well so I took my atoma to it for a minute or so. Underneath was the true grit rating so just be aware that you may need to shave a layer off the top.
Good video. I agree on your recommendations. I bought a rika 5000 and at first, I did not like it. But after using it a while I went from not liking it to loving it. I think when you first get this stone you need to "break it in". Also on the Chosera 3000 it needs to be "broken in" as well. At first, the Chosera would load up and I had to keep cleaning it. Now it works great. Lastly, I just purchased a white 8000 as well. I have the kit 8000 and love it. But someone I follow on the straight razor scene, loves the white 8000 you just reviewed. I do not think he has the kit 8000. Once it comes in I will let you know what I think. Lastly, I just bought a shapton pro 12000 for razor sharping. That is one HARD stone. I am not sure about the results yet. I have been using a 140X power microscope on my razors to see the results and the jury is still out. The kit 8000 does a good job but it does not make the razor "shave ready". The stones you did not review was the King 1000 and 6000. I like both of these stones but I agree the Cerax is better. The King 6000 feels similar to the Kit 8000.
As someone who is looking to buy a set of well feeling water stones i really appreciate this video. I wanted to go for the naniwa 400 but i might get the cerax instead. You give a good wide range of stones to research
right on. glad i could help
What a great video. TH-cam could use more content creators like you. Nicely done!
Thanks Ryky, for this long but very useful review - no stone unturned! The Chosera 800 alone does everything I need to keep our kitchen knives sharp. Even better, since I started using your buffalo hide strop.
thanks Doc! catch you in 2018!
One of the best informative videos so far. Being all of them very good, this exposition is awesome --I like loooong videos--. I would love to see you also commenting about Naniwa Diamond Stones. Thanks Ryky.
thanks friend. doing my best. stay in touch. trying to get the diamonds in soon
Thanks a LooooooT. Waiting ... and watching. :)
Very good video... Glad to hear from your experience after experimenting with all these stones, and I know you did it seriously. Will help a lot of people for choosing what they want at different grit level!
just going my best, Rungalaad!
Polishing stones great for ar triggers! Just don't change the dimensions. Great review by the way!
I am new to your page and I would like to just say thank you for putting together such great content.
I completely agree.
Merry Christmas and a very good and healthy 2018.
Thank you for your videos! So much information! I purchased an Enso prep knife on your recommendation and love it! Thank you! A couple of questions about sharpening stones: 1) I I am only using one stone, what grit should I be getting? 2) what is the difference between a splash and go and a soaking stone? Is there a big difference in performance? Do the stones indicate if they are splash and go, or soaking stones? 3) Don’t mind spending to get a good stone to keep the knife sharp, just as a beginner, seems like there are so many selections. Thanks for your help!
How do you feel about the Shapton traditional stones & how they measure up to the glass?
I’m a longtime chef who just bought my first real Japanese knife.( I don’t count my Shun) Never really put much thought into my knives until recently & stumbled into more traditional Japanese knives as an option.
Very excited to jump in!
Thanks for the great content. I find the detail & thoroughness in your videos most helpful. Cheers!
Can you review a King Hyper 1000? The harder one. I’ve heard a lot of positive reviews and feedback about it, some saying it’s better than the Cerax 1k. I’m curious if this is true. If you can, I’d appreciate it, if not, I understand. Keep up the great channel!
Great video Ryky.
On your advice I purchased the Chosera 800 and 300 and wow they are fantastic. I asked a friend in Kobe to buy them for me and on send to New Zealand. In my ignorance I thought the Chosera 400 would complete my set. How wrong was I. After starting a dozen sharpenings the 400 has dished noticeably so I won't use it again until I've flattened it. I've found the 400 is soft compared to the 800 and 3000. My knives are now razor sharp after using the 800 and 3000. Thank you for your great vids.
Manuia le Kerisimas to you and family from Aotearoa 😎
hey Don! good to hear from you! glad my videos helped a bit. Manuia le Kerisimas to you and family! i have to use that WAY more.....
I believe that "likes" increase the chance that the video will be higher up in the search results, so they can help the vlogger get more exposure.
thank Ron!
This is a bit "misleading." You do get a small "boost" in interactivity, but no where near as much as amount of comments, viewer retention, how many videos are seen in a time frame, and subscriber count. This is why a lot of YTers push giveaways through comments or close their video with a question (Such as, Tell me what you guys want to see more of" or "What do you think about X or Y? Comment below!)
What "Likes/Dislikes" do is help the system personalize and prioritize a person's tastes for later use and not a general metric of exposure.
For instance,; let's say I watch a 20 minute video about a baking show because I like that specific show. YT then says "this guy likes baking" and pushes a ton of baking channels. Now, I will most likely skip over these videos and channels because I have no interest, so me "disliking" them would put them on a lower priority of when I search, but nothing for "unexposed audiences."
When I "like" another video of the same baking show, it starts to push videos related to that show (And not just baking) to push them up on searches.
YT also considers most subscribers as them "auto-Liking" a content creator's videos. This is unaffected if the subscriber "dislikes" the video as it could be just a criticism of the video and not the content creator as a whole, just that video has a lower priority if I choose to search for it using related tags. Again, it's not seen as a big deal because subscribers receive notifications and have quick access to your channel.
So if you want a channel to grow by the algorithms standards; the important thing is engagement through retention and comments/interactivity. If I watch a 10 minute video of a knife unboxing followed by 60 minute video of Whetstones, subscribing, and leaving a comment: that's going to be far more beneficial than if someone stumbles upon a video and just leaves a like after watching 2 minutes. This is why creators are now saying that reminder to leave a like at the end of the video instead of, previously, which was the beginning. That retention is far more important and the "like" is if they want to see more content similar to it.
I like the glass 4k but you're right you have to make it fit. I use it as my final stone after the cerax 1k on many knives but I also use it as a step before the glass 10k for certain knives
Had my cerax 700 now for roughly a dozen sharpenings and while I usually agree with your assessments, I think the 700 is a nice stone. It's quick enough for my taste but I'm not really into speed as an attribute to make or break a stone. It feels like a slightly coarser cerax 1k to me it's still pretty hard no fear of gouging it doesn't build up tons of slurry which I like and the end result is very clean ! I'd love to see you do a full review on a 61+ knife I would like to hear your comments !
I really wish I had seen this before I bought the stones I did. (I got the shampton 220, super stone 1000 and super stone 3000. Shampton 220 for really dull knives and establishing/refining bevels (I went for 220 instead of 320-400 because I am getting into knife making). Super stone 1000 for normal sharpening. Super stone 3000 for polishing/stropping) I hope what I picked out will still serve me well but I definitely think I could've picked a better set of stones out.
As a woodworker, tactile feedback, is important to me. I'm curious if you've ever tried/tested the Sigma Power stones or the Imanish Bester stones?
Hi I enjoy your videos, I only have a very small kitchen so what few stones should I buy ? I don’t know anything about stone but I would rather have a few high quality ones than a lot of cheap ones.
Do you have a video about dressing nagura stones? I've read that you should have one same grit or higher than the stone you're using it on. And that it's more for the high grit polishing stones.
Very good sharpening stone review ! Thanks
Man!!! What a sharpening stone neerd!!! Your review are awsome! But what about the Naniwa Aotoshi?
You Sir, are a Godsend. Thank you.
Glad to help
Recently, I made a pilgrimage to Korin, a Japanese knife store in NYC. Their strong advice was not to soak even "soaking" stones of over 2000 grit. For double stones they recommend soaking the 1000 side, but only splash the 3000 or 6000 side. They say the finer stones will crack if you really soak them. That coincides with some stuff I hear from others who complain about certain stones cracking?
Wet stone obsession...you are my precious.
Awesome videos mate. You're doing everything I don't have time for, that said, you're doing it well!
Well I sat here and watched the entire video. You have a new subscriber. You kept it interesting and thanks to you I have a bit of knowledge on stones. Thank you.
welcome.
Burrfection do you ever do any videos on sharpening straight razors?
Ryky, thank you for the review. I like seeing what you think about different stones. I think you provide really good information, also I like that you try to be as unbiased as possible. I'm glad I found your channel, you've helped me a lot.
thanks Diane, just doing my best! Merry Christmas, and catch you in 2018!
Woooow, thanks dude! that's very practical, i learned a lot here. But as a rookie, can I ask a question？ Why there are so many black scratches on the surface of the whetstone when I use my new 6000 whetstone to sharpen knife? Even if I rub it with my hand and water, they won't go away completely. I had to scrape it with a flattening stone. Does that mean the whetstone is of poor quality? Am I being cheated by the merchants？
Is there a video where you explain what you mean by feedback and how the different feedbacks are created by different stones?
That's a good collection of stones, I dread to think how much all that was...!!! At the risk of insulting your professionalism, I recently bought a 'good' German combination stone, 3000/8000. I gave it a brief run with a hunting knife, I didn't get the impression the 8000 side would polish as I expected it to. ?.? Would this be correct..?? Great video and very interesting, nice to see so many quality stones. Thank you for your time and effort.
Hey Ryky! Happy holiday and Thank you again for the awesome video, very informative as always. It’s the holiday season and I’m looking to invest in another stone. I have a Misono UX Gyuto and Slicer, and currently sharpening on a 800 grit Naniwa Chosera probably once per week. Would it be better to invest in a 3000 grit or 1000 grit stone, or even both? OR a 1000/6000 king combo stone? So many stones, so many options- any advice would be appreciated. Thank you
Good morning I have to thank you for your advice so many opinions on stones lots of people reviewing l have changed my mind a lot of times. I have decided to start off reasonably priced since my daughter will be buying me this starter l am going to tell her Naniwa stone holder with a 2 sided 1000 3000 Naniwa super stone. Do you think this is a good choice. I have not started my Japanese knife collection yet
wow I wish I saw this video before I got the naniwa ss 400, I learnt to sharpen on that stone and still use it a lot but always felt it took way to long and is for some reason more difficult to use but somehow I thought that was normal
Thank you very much for this impressive in-depth video !!!