i know there's a thread about rackets and tennis elbow, but i don't know if all that applies the same to wrist pain. basically, i started to develop pretty bad wrist pain when i switched from my dunlop m-fil 500 to the wilson nPro open. i switched because i wanted a heavier racket with a smaller head size. i bought a yonex RDS 003 over the winter. i used it for the first time this past weekend and the wrist pain is back. the yonex has a stiffness rating of 65, while the wilson is 68 and dunlop is 66. could it be that i can't handle an 11oz racket? or should i try an even heavier racket so that i get more stability and plow through? any suggestions?