My nine year old daughter is weak and small framed for her age and I've been trying to teach her to hit double handed off both sides so she can get enough power to hit over the net from the baseline. Since dad isn't a pro, and doesn't hit two handed off either side, I got her into a jr clinic (1X per week). They won't allow her to hit two handed off the dominate side. I think she is digressing some and I'm not sure what to do. The next round of clinics will start soon and I need to make a decision. 1-Get her privates with a pro that will help her with the two handed strokes 2-stay with the clinics and hope that she eventually gets strong enough to hit 1 handed. 3-buy a ball machine and work with her myself. What is the down-side of teaching double handed? FWIW-our head pro hits double handed off both sides in competitive matches and some of our best ladies hit double handed.