Nice topic! Well I am playing now with a Wilson Kfactor ksix one 95 (18x20), really enjoying it and feel i have much better control with this racquet. I play usually 3 times a week.
Used to have the ksix one team (wife thought i was going to love it, she was so wrong) hated its guts, it did not ended up well (i am talking about the racquet here, not about my wife)... mmmmm lets say it was all over the court??

its head is to light for my taste.... thats why it flew far away in the air!
Before that I tested the ksix one tour, like the one Fed uses but its way to heavy after the first set, i have no clue how can fed generate so much pace with that racquet, its like playing tennis with a heavy stick.
Used to play way before with a Head iprestige... amazing racquet specially the midsize plus version, felt my service had much more kick and my volleys were better.
So, if there is ever a itst real tourney, ECUADOR is really and technically in the middle of the world so it should be here where the torunament is done, half way for Americans, half way for Europeans
