In this video of Andre's 2HBH... http://www.youtube.com/watch?v=ql5xVpACt1Y I notice that he does what many guys do on their forehand. He takes his racquet back so far... and just when he's ready to strike the ball... he relaxes his wrists so the racquet snaps back even further before heading forward... adding more racquet head speed to the stroke. In the video... his racquet is pulled back and completely still at :26 seconds. Then, at :27 seconds, the racquet goes back (rotates backward) another 4-6" before heading forward and striking the ball at :29 seconds. Another great example occurs at 1:45-1:49 What is the term for this wrist action/relaxing of the wrist that occurs before striking the ball that allows the racquet head to gain more speed?