Beautiful pronation here ...Andy impacts ball on the left rear quarter and WAP !! rotates entire right arm from shoulder to finger counter-clockwise ....this is the key power move
common misconception in the serve is that arm is straight and aligned with the racket at impact. ...not true ...arm is straight but the racket handle is angled at 30* ..this allows the pronation to snap the racket into the ball with force
Complete the Racket Drop ...envisage 4 ft space above the net into which you hit the ball ...rotate forearm & humerus thru impact ....head stays in front of impact (prac thoughts 9/6/17)
