I think Fed might have done a disservice to himself by getting so close to Nadal at Wimby 08 and AO 09. In his mind , he must be thinking, "all I need is a bit more consistency and my current A-game should be good enough to beat Nadal ". It's possible that Fed's reluctance to change his game is because he hasn't yet been spanked by Nadal outside of clay. Going into the French open though, Fed should know that his chances of winning with his regular game are very slim barring injury to Nadal. So he should change things up and see how that works. He has absolutely nothing to lose and if he thinks he does , then he is delusional and has the wrong mindset. If he can even take a set of Nadal at the FO , it would be a huge confidence booster for him and he might also discover some new ways to hurt Nadal that will help him at the other slams.