I use the old yonex super rd tour 90, and I am constantly needing more power from it. Will putting a tension at 55lbs be a good idea? So far I have been using it with psgd 15L @ 60 and hollow core @ 60 but it really needs a lot of swing to get pace. Also I don't want to use lead since the racquet is heavy enough. All I want is more power. Btw I only want to use psgd from now on.