Hi! I've been enjoying playing tennis with my son. Now I have tennis elbow--I don't want to give up the game. I chose the Yonex MP 5 for it's flexibility. I still have elbow pain, especially at the net. I've been reading about the PK 5 G and 7 G. Does anybody have any useage in put? And, are they arm friendly? Any reccomendations would be helpful. I have tried putting lead on the MP 5 and loosening the strings without success. Thanks for any input.