I know this is kind of a silly question because players evolve, etc. But I'm wondering with all the rave reviews of the POG (Prince Original Graphite) why Agassi isn't still using it. Any theories on what he gets out of the Liquidmedal Radical OS that he can't get from the POG? Also, is it true the POG is one of the very best spin racquets ever? If yes, what makes it so?