I would like to purchase Wilson rackets for my children. I am seeking recommendations on which rackets I should buy. Based on your feedback, I will have the kids demo 4 rackets and then purchase the ones they like best. Here is some info on my kids: 1) My daughter is 7 (she's big for her age), she is a beginner; she has taken about 5 tennis lessons and takes a weekly group clinic, and went to morning tennis camp for 3 weeks in the summer. That's the extent of her experience. She can get the ball over the net, but not consistently. She is getting better at balance and coordination, but still has a way to go. Her pro recommends a 26-inch racket. 2) My son is 9 (also big for his size). He has had tennis lessons for about 9 months. He plays a second day a week in an hour clinic. He had morning tennis camp for 3 weeks. He's pretty good considering he's been playing for a short period of time. He's a strong kid as he's big. I have him playing with the cheapest Wilson available, and he doesn't have any feel with the racket. His pro recommends a 27 inch racket. I'd like to get both of them mid range priced rackets. If they put more time into the sport, we can move them up. Thanks in advance for your advice.