i have a fernando gonzalez's racquet which i got it from him after him breaking his racquet at legg mason few years ago. I compared his and current stock one, i noticed the diffrence in the throat of the racquet it says 97sq in and one in stock says 98sq in but funny thing is in cm2 its same, 630 both of them, can any body explain this to me? I also noticed the differnce in recommend tension Gonzalez's printed 50-55 and stock one is 55-62. Also tenniswarehouse advertise that he is using pure storm but pure storm doesnt make extended version, so is he using pj of pure control team + still? or has he really changed to pure strom his racquet centainly looks long on tv.