I haven't seen much mention of this technique. I've seen the concept of finger power demonstrated & used quite effectively by Lee Jae Bok (in his video). However, he doesn't actually explain the mechanics of the technique. The technique seems quite similar to one that I use for tennis volleys and overhead shots. The grip is held very loosely in the fingers, primarily the thumb and index finger. If the handle of the racket is pushed forward slightly, the racket head is allowed to move back a little with respect to the hand. As contact with the ball or shuttle is imminent, the last three finger of the racket hand squeeze the grip to propel the racket head forward. This technique can be used by itself or as the last link of a stroke motion. By itself, such as a tennis volley, there is very little arm movement employed. the power is generated, in large part, by the grip squeeze. Lee Jae Bok uses it in a similar manner for shuttles that are just a little too high above the net. Instead of using a power swing (like a smash), he put the bird to the floor rather quickly with very little arm or racket movement. It SEEMS that his racket head has moved no more than 2 or 3 cm, yet the speed imparted to the shuttle is amazing! The same finger technique can also be used as the last part of an arm swing (such as an overhead smash). Has anyone out there have any other insights to this technique?