It seems that people underrate the importance of string and tension in general. There are players who buy a $200 tennis racket, then string it with a dead feeling synthetic gut at 65lbs and wonder why racket doesn't play better ? Even on this board, people buy a racket which plays well in all respects and is a bit short on power and think they need another racket, more often with worse playability, just because it has more "power". Hello.... Once you find a racket which has the feel, stiffness, swingweight, balance that you like, as long as the racket has decent power you can tweak it easily with strings/tension. So I think it's foolish to change from something you really like just over the issue of "power", and possibly sacrifice the fine playing characteristics of a player frame. This is assuming that the player has good mechanics to use the player frame and the problem with "power" isn't related to mechanics.