It is such a wonderful racquet. Easily the best racquet I have ever used. It has a nice continuous subtle flex to it. Not like the strange rubber throated and stiff hooped K90. Whoever came up with the specs on this racquet at Wilson should get a raise or something. The low power of this racquet enables you to string the racquet low which as you know enhances everything except control. But the racquet has excellent control to, even strung at 50 pounds. I use 18 gauge Ashaway Kevlar mains and 17 Gosen crosses. I also add 10 pounds to the last 2 main pulls before tying off. On the crosses I add 10 pounds to the last pull at the throat.