Use to own a Pure Drive GT Roddick. Great spin. Great baseline shotts Horrible volleys Good serves. I think im a little stuck with this racket, since i broke it, im trying to get better with my serve and volley... I was trying Kfactor 95 6.1 16x18 pattern. I found it very difficult at my topsin backhand But i felt it very good at the volleys, serves, and planes forehands... Which string config. could help my topspin? and give me a little bit of more power? Looking forward to try similar models, any ideas or advices? I have 2 days before my next tournament... i dont know what to else to do..