Full Guide to Double Flick Finger Trick

This video covers most of the things about Double Flick technique used in speedcubing.
Double flick is used to do double moves such as U2, D2, M2, E2.
For R2 and L2 moves we use technique called Rolling moves which is also covered in this video.
Timestamps
0:00 - Intro
0:17 - What is double flick
2:39 - U2 Flick
5:03 - D2 Flick
7:07 - M2 Flick
9:35 - Rolling R2 & L2 move
13:12 - Mistake to avoid
14:02 - Outro
Note: I didn't explain the E2 double flick, because it is not used practically in the solves at present. Same for the S2 moves.
Brian Sun's videos about double flick mistake people do : • Common Turning Habit T...
Not only just learning but also you have use this in your solves as well. I think the best way to do so is to do some slow solves using this technique and drilling algorithms using this technique.
Hope this videos helps!