Was looking through some old tennis bags of mine and ran across a Wilson Pro Staff Hyper Carbon Tour 90in. The one that has yellow inside the frame. Not sure why but I am interested in hitting with the racquet. Racquet was given to me but never played with it. Have allot of string laying around. What would you guys recommend putting in the racquet for strings and tension? I don't even know the specs on this racquet. I'm sure gut would be awesome but not going there on just a racquet I want to hit with occasionally. Play with RF97 now so used to the weight.