I strung my PS 6.0 with Unique Big Hitter 17 at both 58 & 56 lbs. (56 play much better feel) I also have try w/ Signum Pro Poly Plasma 17 w/ Duraflex 17at 58/62 but didn't like it that much. Have try full PSG w/Durafex 17 @63, play very good but break too quickly, only last like 2 hours. So, the Big Hitter 17 full set is good for me, probably will lower it more to 55 or 54 lbs. The string will not move at all, that what i like, and I could hit the ball very hard with out having flying to the fences.