As I pointed out above, both Rafa and Roger have to pick their battles, at this stage of the game. Roger has long been applauded for managing his schedule well. Why not Rafa? If he plays an exho and gets played well for it, so as to test the waters, why not? And why not stop, when he feels he should? He has fully earned the right. He's a huge money draw, but doesn't have to play more than the body tells him. And yes, he's pacing himself to peak for the AO. At this point, he should be keeping the powder dry for the Majors, as is Roger. And most likely Djokovic. The chase is well on and has been for some time. The shocking thing is that it still is, frankly.