I don't like that he compared it to a stock RF97 without measuring the stock racquet. Given Wilson's quality control, the stock racquet could have been a few millimeters out and given the impression Roger's stick was slightly shorter. I have measured many stock RF97 and there have been shocking...
Looks like he's got it back
t e n n i s w o r l d u s a
That could have been and probably was a custom layup which is or eventuated to the K90, which he was using under various paintjobs before the K90 was ever released to the public. I agree with you there, but this isn't the case with the RF97A.