[DKing]

To add to Kuri's explaination, even a lot of RKC guys are going to the more fluid style snatches, especially during snatch testing. When my girlfriend went through the RKC training (thats Pavel's cert) they taught and encouraged the fluid style snatch, rather than the hard style. Some of the RKC's still use the hard style though, I know Jason C Brown is a big fan.

I think that they are both pretty good movements and with a bit of practice a person should be able to use both pretty easily. I will use a fluid style for high rep work and if I am trying to be a bit more explosive with heavier bells will go to a more hard style.

Danny