Ok, so I was hitting with a friend yesterday evening and we switched racquets for five minutes... I play with a wilson k95 (18x20) with pro hurricane on the mains (62lbs) and prince duraflex on the crosses (60lbs)... He uses a babolat pure storm (the normal 295g one not the tour) with 5grams of lead at both 3 and 9 o'clock he uses big ace on the mains at 60 and prince duraflex on the crosses at 59. Anyway I picked up his racquet and started hitting a few groundies, I could not believe how much power and spin I was generating, I could hardly generate three quarters of that with my wilson swinging at full belt. The stability and feel of the purestorm was incredible it was like no other racquet I have ever played with. The only advantage I felt my wilson had over the purestorm was the serve... the purestorm felt sluggish on the serve and I wasn't generating much power. Does anyone want to enligten me on why the purestorm seemed in a different league from my k95? Was it that the string pattern is 16x19, or that there difference in balance or weight?