I'm growing tired of my wilson k pro tour. I think it's way too light, and I can't get enough topspin. It's already leaded at the 3' and 9.' I want to lead the 11' and 1' to make the racket more spin friendly. Does anybody care to comment on the difference between a leaded heavier racket verses a genuinely born to be heavy racket? Please don't suggest other strings, I got enough on my mind with all these various rackets.