How far below the ball your racquet goes when you wanna hit with topspin and power? I use to go very low on all shots, like racquet head nearly touching the court (ala James Jenson) but I ended hitting lots of very high balls (6 to 10 feets over the net). I did put lots of topspin and the ball fall in play but that wasn't the kind of shots I wanted to hit. (Ball bounce high and almost staying in same position) I have change a bit an mostly don't go below the ball, only a few inches.... I also try to have a very realxed hand and let go the wrist to give topspin to the ball. It's hard to time but works very well. What do you think and do?