Originally Posted by maxpotapov
Not just that, but they should also respond well to modifications. For example, Pure Storm Ltd GT would be a nice frame to modify for greater swingweight. But after all attempts people still feel like they sacrifice some performance, especially on serve. Same situation with EXO3 Tours.
Some racquets are better left unaltered, or with a minor touch of weight here and there (just for a placebo effect).
How well a racquet responds to modification is very subjective.
Placebo effect is rather big. I have seen some people on here write about leading up racquets that are already relatively high swing weight for their 3.0/3.5 selves to be using and state that the racuqets are unstable without modding. I'm just thinking to myself: Damn fool.