I am currently playing a 93 sq in frame. My backup stick is 105 sq in. (Both are 16 x 19). I am playing both at around 55 lbs tension. The 93 is fairly low powered, and the 105 is a cannon. I like the way the 93 plays right now--although I may drop the tension to 52 or so. I'm guessing I need to bump up the tension on the 105 a lot. But how much? Would 60 do it? I intend to play the 93 in matches, but may need to switch to the 105 if I break a string during play. Whaddya think?