Is it just me, or has Federer appeared to have changed both his forehand and backhand grips since '05? Before this time, his forehand appeared to be more semi-western. Now it appears to be almost an eastern. His backhand grip seemed a little more extreme back then as well. His strokes appeared, in general, to be more whippy , and had more wrist action. It also seems like he hits a flatter ball these days as a consequence. I'm probably wrong as usual.