Hey Should I trade my babolat pure drive team for a babolat drive z os? I dont know if the deal is worth it. Ive just gotten used to the pdt, and dont know how i will be going back to an os. Is the drive z os any good? Ive read allt he reviews on tw( http://www.tennis-warehouse.com/feedback.html?pcode=ZOS ) and they have all been good.