Guys, I was reading an article today on this months issue of head Tennis magazine, might have been a different magazine. In it Sorana Cristea had a Q&A. She says that she changes her 6 racquets every six months because it starts to lose feel. So if she plays 5 hours a day she would have put 150 hours on each of her racquets before it starts to lose feel. Now I feel that my older racquets are no good. oh well, just wanted to share what I read, I thought it was interesting.