I managed to pick 3 of these sticks on the bay after demoing it for a week. I am talking about the non GT version that came out in 2009.This is the best racket I have ever hit with. I am coming along the lines of the Prostaff 90, K90 line and this is a welcome sign for my arm and elbow. I use Head Fibergel Power 17 on this racket. All I can say is amazing. Can someone be able to help me customize this racket as it still feels little lighter to me especially coming from a 12 plus oz prostaff line. I am definitely keeping these for a while.