I want to try the low tension poly experiment on one of my sticks (KPS88 or K90). I'm thinking Luxilon Big Banger Ace 18g mains @ 38 lbs, and Gamma Professional 18g crosses @ 48 lbs. I can get Gamma Pro for $10/set (contact on the bay). RSI gave Big Ace stiffness rating of 232 (about avg for poly), and Gamma Pro 18g 144...very low, almost as soft as natural gut. http://www.racquetsportsindustry.com/issues/200809/200809allstrings.html My questions are: 1) how much tighter can I string the crosses without risking damage/warping of the racquet? 10 lbs? 12 lbs? 2) how would a stringbed with crosses this much tighter play like? Thanks!