I have read that ProKennexes Ki 5, 5 G and the heritage series (among others) are very good player's racquet but every review also says "arm friendly", "great choice if you do have arm problems", "the answer to tennis elbow" ... The ProKennexes appeal to me because they are flexy, control oriented, with a rather large head size and an open string pattern + the weight/balance is right for me. But I also don't want a racquet that's like too soft, especially since my arm doesn't bother me at all. I want a racquet that's confortable but one that can also play aggressively (right now, I am playing with Prestige Tour 660). In other words, I don't need to get the most arm friendly racquet in the world, I just want a good player's racquet with those specs. Are ProKennexes the answer or are they really more on the softy side ?