About to string one of my own racquets: I will experiment with groupings of tension to save time. For 16 mains: groups of 3+3+2 per side. Inside 3 highest to outside lowest. For 18 crosses: groups of 6x3 where middle 6 will be lower. This way an approximation can be tried in order to save time on my drop weight machine. Thank you for presenting an interesting concept 👍🏻👍🏻 Cheers
Ok for a starter, remember the racquet frame is clamped during the string process. This is just one of the many elements that are overlooked in what was described in the video.
Dear VE, Have you done any tests and measurements of tension variations during the stringing process even if the racquet is held at 6 points of contact to affirm what you are saying? I am convinced not to affirm something which is absolutely not the reality.
I can't see how you can lessen the tension on the next string without it affecting the tension of the previous string line, they are physically connected. Now I can see it if every string was tied off on its own at each end. @fanbu1061 makes an excellent point it's a pulley system. And even if you manage to get different tensions at the moment, the minute you pound on the string bed the strings will seek to equalize the tension.
Thank you for your message! The racquet stringing with the Main and Cross strings is not a pulley system at all. You must think that there are loops on the frame at all ends of the strings, which creates enormous resistance to the movement of the strings, thereby preventing any movement of these strings, and therefore any change in tension even for 2 adjacent strings. You should also think about the fact that the impact of the ball is on about 25 intersections (5 Main X 5 Cross), which again does not affect the tension of a single string, and not at all at the places of the loops. Sergetti personalized Tensions complex calculation are done using up to 50 variables to get the same vertical string deflection on the biggest surface possible of the stringbed, which is 70% of it, compared to only 12% with conventional stringing.
It doesn’t really make much sense, because 2 lines of strings hanging across the racket is basically a pulley mechanism. The tension on both lines should be very similar with the maximum difference of the friction between the string and the racket. So even you are changing the tension value when stringing different lines of strings, you can’t change much.
Dear Fan Bu, as I asked to VE, Have you done any tests and measurements of what happens to every string tension during the stringing process even if the tensions are different for all strings to affirm what you are saying? I am convinced not to affirm something which is absolutely not the reality.
Thank you very much for your question… There is a dozen of Top Pros ATP/WTA who tried it through their stringers and all gave only positive feedback. We have no idea if they are using it but what I can say is that I do not have any contract with them to allow me to use their image to promote Sergetti. We think there are some players using it but no confirmation. Pros might want to keep it confidential to keep the advantage on the other players not using it. Any players and stringers can buy their Sergetti sheet, so, We have no control on who is using it and it is normal. We do not think that a Federer, Rublev or another ones would buy their Sergetti sheet themselves using their names. When it comes to Pros with the presence of an agent, it is coming with a question of big money. It takes a really big budget like big companies to pay Pros and agent. You can take a look at our Testimonials page where there is some former Pros, Pro stringers and many players of all ages and levels with nice true Testimonials: sergetti.com/en/testimonials/ We also have a really good and recent Sergetti Review from a reliable and independent source in tennis in TennisSpin here: th-cam.com/video/uy09L5EeaKI/w-d-xo.html Kind regards, Serge
Interesting concept, but wouldn't the strings all reset to one tension after hitting for a while? like if u tension the first mains at 70lbs, then second main at 50lbs for example....once u hit a few times, both strings will move and both becomes like 60lbs since they are all connected? There are no knots to stop the tension loss/sharing/reset
Thank you very much for your message and interrogation you have! The racquet stringing with the Main and Cross strings is not a pulley system. You must think that there are loops on the frame at all ends of the strings, which creates enormous resistance/friction to the movement of the strings, thereby preventing any movement of these strings, and therefore any change in tension even for 2 adjacent strings. You should also think about the fact that the impact of the ball is on about 25 intersections (5 Main X 5 Cross), which again does not affect the tension of a single string, and not at all at the places of the loops. Sergetti personalized Tensions complex calculation are done using up to 50 variables to get the same vertical string deflection on the biggest surface possible of the stringbed, which is 70% of it, compared to only 12% with conventional stringing.
@@sergettitennis I will have to disagree, I know there are resistance and friction on the loop yes, but you can easily see how tension can be affected by cutting any single string, u will see the surrounding strings becoming loose even without pulling, thereby the "resistance/friction" whilst true that it helps hold the tension, I believe over multiple impacts/hitting, will change or even out the tensions somewhat, not 100% but definitely not 0% either, hence making individual tension difference between strings quite moot in my opinion. Same reason some don't like the Starting knot, or think the starting knot destroys the grommet...I mean, if the loop friction holds, why do u need a starting knot that is different from a normal knot in the first place? esp after many loops.
@@logicrule I will have to disagree. What you think on this subject is not the reality, and it is obvious that you have not done the tests to validate your statements. There are many details that remain misunderstood by many people about everything that happens during the entire stringing process, leading to false assumptions by many. Have a good day!
Dear Ivan, Thank you very much for your question and interest in our unique Sergetti technology! Sure, you can use a Manual machine, and sure it will take longer than an electronic machine to change tension 27 times for a 16x19 pattern (8 pairs of symmetrical MAINS + 19 CROSS) but the result just worth it. The first stringing job will take longer but you will get use to it and find ways to save time doing it. Here is a link to a testimonial of a totally satisfied client who is using a Drop weight machine: sergetti.com/en/testimonials/garth-hunt-ger/ About the increments. If you can only do increments of 0.5 kg or 0.5 lb, there is no problem, you can round the tension to 0.5 kg or 0.5 lb increments like the following: - 0.1, 0.2 are rounded to 0.0 - 0.3, 0.4, 0.5, 0.6, 0.7 are rounded to 0.5 - 0.8, 0.9 are rounded to the upper whole number. If you only have increments of whole numbers, you go like the following: - 0.1, 0.2, 0.3, 0.4 are rounded to the lower whole number. - 0.5, 0.6, 0.7, 0.8, 0.9 are rounded to the upper whole number. If you need help on how to start the Main and Cross strings with your floating clamps, please send me a request at service@sergetti.com Best regards,
your arguments are sound. Thank you for the information. may I know what is stopping you from releasing the software as open source or free or letting a community build around it organically. I know the obvious answer is money but anything else?
Thank you for your message and question! Why am I not giving it away for free? It's simple... I put everything I have into this project, even a house, to return to live in an apartment at the age of 50 years old in 2014 with my young son, in order to be able to continue the development of this product. I left a good job in 1999 to work full time on this project with on the side work for a living. It took me more than 12 years with all my heart, determination and expertise to develop the program and the huge database, plus several months for the new Spin patterns. This project is my full time job for the 23rd year and I am still in an apartment so I can continue to spread the word about this Unique Stringing Technology. No one can understand the magnitude of what has been done to create this Unique Technology that makes thousands of tennis players happy in over 60 countries to have the pleasure of playing with their racquets strung to their full potential with optimal performance and comfort at the same time, as well as the hundreds of stringers who contribute to making all these players happy. Hope this helps to understand!!! Greetings, Serge
We take into account every aspect that have an influence on the final result of the stringing job. We have developed complex formulas where all the variables are integrated, including the specific characteristics of the precise models of racquets and strings used in order to calculate a perfect and diferent tension for each string. In the formulas, we also take into account the variations in tension due to the deformation of the frame during each string installation, then also the friction during the weaving of each Cross string where the friction level varies for each Cross string, etc. Racquet Stringing is a lot more complex than only pull each string to the same tension when we want to string a racquet to its full potential. That is why the inventor took more than 12 years to dvelop Sergetti, the Science of Stringing.
Just try it first, won't hurt to return to conventional stringing. But you should find a good stringer that is experienced with the method, or it would be too long.
And takes two to three times longer to string per racquet and no pros use it and lots of people who have used it have gone back to conventional stringing...
Sir, Sergetti stringing takes only 3-5 minutes longer for an experimented Stringer using an electronic machine. We have sales in more than 35 countries and how can you tell that no pros are using it, you know all them? When someone has notthing constructive to say, he should say nothing. Here is a link for you to read please. There is the French and English version of the Triple Filter Test: azmani.ma/les-trois-passoires/
@@redflynn9427 Dear Red Flynn, Thank you for your question! Sergetti Technology is endorsed by the ERSA International (Europeen Racket Stringers Association) that counts around 5000 stringers, including stringers for Pros. We have a lot of Sergetti stringers / dealers around the world. We have no control over who buys their Sergetti Personalized Tensions Sheets and for whom. We would really surprised to see Federer's name make a Sergetti purchase on its own. We know stringers whose names cannot be revealed, with whom we are under NDA who make their players try Sergetti, and the feedback are excellent. We have Frédéric Niemeyer who was # 1 in Canada who played with Sergetti at the end of his career ( sergetti.com/en/testimonials/frederic-niemeyer/ ). There was Marcus Willis from UK who was the best tennis story in 2016 with his run at Wimbledon ( sergetti.com/en/testimonials/marcus-willis/ ). We have few former Pros who are currently playing with Sergetti and who have offered their testimonials on our site: sergetti.com/en/testimonials/ We don't have any lucrative contracts signed with a Pro player at the moment, because as soon as there is an agent involved, huge amounts of money come in. We would need a top Pro who will endorse Sergetti and who will accept that we can make this public. We have a method in place to reward a player based on the sales associated with their name. Hope this helps to understand our context with the Pros. Kind regards, Serge
What you buy is your Sergetti Personalized Tensions Sheet for 23$ CAD based on your precise Racquet, Main and Cross strings Brand and models, to your preferred tension. Once the payment is done through Paypal where you do not need a Paypal account, just use the Credit Card, you will receive your Sergetti Sheet few minutes after in a PDF format.
About to string one of my own racquets: I will experiment with groupings of tension to save time.
For 16 mains: groups of 3+3+2 per side. Inside 3 highest to outside lowest. For 18 crosses: groups of 6x3 where middle 6 will be lower. This way an approximation can be tried in order to save time on my drop weight machine.
Thank you for presenting an interesting concept 👍🏻👍🏻 Cheers
Ok for a starter, remember the racquet frame is clamped during the string process. This is just one of the many elements that are overlooked in what was described in the video.
Dear VE, Have you done any tests and measurements of tension variations during the stringing process even if the racquet is held at 6 points of contact to affirm what you are saying? I am convinced not to affirm something which is absolutely not the reality.
I can't see how you can lessen the tension on the next string without it affecting the tension of the previous string line, they are physically connected. Now I can see it if every string was tied off on its own at each end. @fanbu1061 makes an excellent point it's a pulley system. And even if you manage to get different tensions at the moment, the minute you pound on the string bed the strings will seek to equalize the tension.
Thank you for your message! The racquet stringing with the Main and Cross strings is not a pulley system at all. You must think that there are loops on the frame at all ends of the strings, which creates enormous resistance to the movement of the strings, thereby preventing any movement of these strings, and therefore any change in tension even for 2 adjacent strings. You should also think about the fact that the impact of the ball is on about 25 intersections (5 Main X 5 Cross), which again does not affect the tension of a single string, and not at all at the places of the loops. Sergetti personalized Tensions complex calculation are done using up to 50 variables to get the same vertical string deflection on the biggest surface possible of the stringbed, which is 70% of it, compared to only 12% with conventional stringing.
It doesn’t really make much sense, because 2 lines of strings hanging across the racket is basically a pulley mechanism. The tension on both lines should be very similar with the maximum difference of the friction between the string and the racket. So even you are changing the tension value when stringing different lines of strings, you can’t change much.
Dear Fan Bu, as I asked to VE, Have you done any tests and measurements of what happens to every string tension during the stringing process even if the tensions are different for all strings to affirm what you are saying? I am convinced not to affirm something which is absolutely not the reality.
Interesting concept. Which pros on tour are using this currently?
Thank you very much for your question…
There is a dozen of Top Pros ATP/WTA who tried it through their stringers and all gave only positive feedback. We have no idea if they are using it but what I can say is that I do not have any contract with them to allow me to use their image to promote Sergetti. We think there are some players using it but no confirmation. Pros might want to keep it confidential to keep the advantage on the other players not using it.
Any players and stringers can buy their Sergetti sheet, so, We have no control on who is using it and it is normal. We do not think that a Federer, Rublev or another ones would buy their Sergetti sheet themselves using their names.
When it comes to Pros with the presence of an agent, it is coming with a question of big money. It takes a really big budget like big companies to pay Pros and agent.
You can take a look at our Testimonials page where there is some former Pros, Pro stringers and many players of all ages and levels with nice true Testimonials: sergetti.com/en/testimonials/
We also have a really good and recent Sergetti Review from a reliable and independent source in tennis in TennisSpin here: th-cam.com/video/uy09L5EeaKI/w-d-xo.html
Kind regards,
Serge
I wonder why racket designers didn’t come up with a square shaped racket🤔?
4 edges will be VERYYY weak, racket will snap
Interesting concept, but wouldn't the strings all reset to one tension after hitting for a while? like if u tension the first mains at 70lbs, then second main at 50lbs for example....once u hit a few times, both strings will move and both becomes like 60lbs since they are all connected? There are no knots to stop the tension loss/sharing/reset
Thank you very much for your message and interrogation you have! The racquet stringing with the Main and Cross strings is not a pulley system. You must think that there are loops on the frame at all ends of the strings, which creates enormous resistance/friction to the movement of the strings, thereby preventing any movement of these strings, and therefore any change in tension even for 2 adjacent strings. You should also think about the fact that the impact of the ball is on about 25 intersections (5 Main X 5 Cross), which again does not affect the tension of a single string, and not at all at the places of the loops. Sergetti personalized Tensions complex calculation are done using up to 50 variables to get the same vertical string deflection on the biggest surface possible of the stringbed, which is 70% of it, compared to only 12% with conventional stringing.
@@sergettitennis I will have to disagree, I know there are resistance and friction on the loop yes, but you can easily see how tension can be affected by cutting any single string, u will see the surrounding strings becoming loose even without pulling, thereby the "resistance/friction" whilst true that it helps hold the tension, I believe over multiple impacts/hitting, will change or even out the tensions somewhat, not 100% but definitely not 0% either, hence making individual tension difference between strings quite moot in my opinion. Same reason some don't like the Starting knot, or think the starting knot destroys the grommet...I mean, if the loop friction holds, why do u need a starting knot that is different from a normal knot in the first place? esp after many loops.
@@logicrule I will have to disagree. What you think on this subject is not the reality, and it is obvious that you have not done the tests to validate your statements. There are many details that remain misunderstood by many people about everything that happens during the entire stringing process, leading to false assumptions by many. Have a good day!
Can this method be used for stringing in manual machines with floating clamps?
Dear Ivan, Thank you very much for your question and interest in our unique Sergetti technology!
Sure, you can use a Manual machine, and sure it will take longer than an electronic machine to change tension 27 times for a 16x19 pattern (8 pairs of symmetrical MAINS + 19 CROSS) but the result just worth it.
The first stringing job will take longer but you will get use to it and find ways to save time doing it.
Here is a link to a testimonial of a totally satisfied client who is using a Drop weight machine: sergetti.com/en/testimonials/garth-hunt-ger/
About the increments. If you can only do increments of 0.5 kg or 0.5 lb, there is no problem, you can round the tension to 0.5 kg or 0.5 lb increments like the following:
- 0.1, 0.2 are rounded to 0.0
- 0.3, 0.4, 0.5, 0.6, 0.7 are rounded to 0.5
- 0.8, 0.9 are rounded to the upper whole number.
If you only have increments of whole numbers, you go like the following:
- 0.1, 0.2, 0.3, 0.4 are rounded to the lower whole number.
- 0.5, 0.6, 0.7, 0.8, 0.9 are rounded to the upper whole number.
If you need help on how to start the Main and Cross strings with your floating clamps, please send me a request at service@sergetti.com Best regards,
your arguments are sound. Thank you for the information. may I know what is stopping you from releasing the software as open source or free or letting a community build around it organically. I know the obvious answer is money but anything else?
Thank you for your message and question!
Why am I not giving it away for free? It's simple...
I put everything I have into this project, even a house, to return to live in an apartment at the age of 50 years old in 2014 with my young son, in order to be able to continue the development of this product. I left a good job in 1999 to work full time on this project with on the side work for a living. It took me more than 12 years with all my heart, determination and expertise to develop the program and the huge database, plus several months for the new Spin patterns. This project is my full time job for the 23rd year and I am still in an apartment so I can continue to spread the word about this Unique Stringing Technology.
No one can understand the magnitude of what has been done to create this Unique Technology that makes thousands of tennis players happy in over 60 countries to have the pleasure of playing with their racquets strung to their full potential with optimal performance and comfort at the same time, as well as the hundreds of stringers who contribute to making all these players happy.
Hope this helps to understand!!!
Greetings,
Serge
50 variable is it formula used statistic probability, integral function calculus , physics , ...?
We take into account every aspect that have an influence on the final result of the stringing job. We have developed complex formulas where all the variables are integrated, including the specific characteristics of the precise models of racquets and strings used in order to calculate a perfect and diferent tension for each string. In the formulas, we also take into account the variations in tension due to the deformation of the frame during each string installation, then also the friction during the weaving of each Cross string where the friction level varies for each Cross string, etc. Racquet Stringing is a lot more complex than only pull each string to the same tension when we want to string a racquet to its full potential. That is why the inventor took more than 12 years to dvelop Sergetti, the Science of Stringing.
Just try it first, won't hurt to return to conventional stringing. But you should find a good stringer that is experienced with the method, or it would be too long.
And takes two to three times longer to string per racquet and no pros use it and lots of people who have used it have gone back to conventional stringing...
Sir, Sergetti stringing takes only 3-5 minutes longer for an experimented Stringer using an electronic machine. We have sales in more than 35 countries and how can you tell that no pros are using it, you know all them? When someone has notthing constructive to say, he should say nothing. Here is a link for you to read please. There is the French and English version of the Triple Filter Test: azmani.ma/les-trois-passoires/
@@sergettitennis is there any tour pros using this method?
@@redflynn9427 Dear Red Flynn, Thank you for your question! Sergetti Technology is endorsed by the ERSA International (Europeen Racket Stringers Association) that counts around 5000 stringers, including stringers for Pros. We have a lot of Sergetti stringers / dealers around the world. We have no control over who buys their Sergetti Personalized Tensions Sheets and for whom. We would really surprised to see Federer's name make a Sergetti purchase on its own. We know stringers whose names cannot be revealed, with whom we are under NDA who make their players try Sergetti, and the feedback are excellent.
We have Frédéric Niemeyer who was # 1 in Canada who played with Sergetti at the end of his career ( sergetti.com/en/testimonials/frederic-niemeyer/ ). There was Marcus Willis from UK who was the best tennis story in 2016 with his run at Wimbledon ( sergetti.com/en/testimonials/marcus-willis/ ).
We have few former Pros who are currently playing with Sergetti and who have offered their testimonials on our site: sergetti.com/en/testimonials/
We don't have any lucrative contracts signed with a Pro player at the moment, because as soon as there is an agent involved, huge amounts of money come in. We would need a top Pro who will endorse Sergetti and who will accept that we can make this public. We have a method in place to reward a player based on the sales associated with their name.
Hope this helps to understand our context with the Pros.
Kind regards,
Serge
How much is this program ??
Dear Karim, what you can buy is your Sergetti Personalized Tension Sheet for $ 23.00 CAD ($ 17.25 USD).
I'm assuming you're buying one sheet of paper for like 20 bucks plus
What you buy is your Sergetti Personalized Tensions Sheet for 23$ CAD based on your precise Racquet, Main and Cross strings Brand and models, to your preferred tension. Once the payment is done through Paypal where you do not need a Paypal account, just use the Credit Card, you will receive your Sergetti Sheet few minutes after in a PDF format.