i am currently using the babolat z-drive lite but im looking at the babolat aeropro lite. they are 5 grams apart, same head size and nearly everything else is pretty much identical. the upgrade would be the i would have more power and i believe the control would stay about the same. the reason im getting it is because im on a very competitive varsity team and if i break my strings im in a bit of trouble. anyways i really dont want to spend an extra $20 to demo a racquet if its pretty obvious that it would work for me and if i were to get a racquet in a few weeks it would be hard to get totally used to midseason. anyways if the features are pretty much the same. do i really need to demo? thanks