All of our demo cart heads just arrived and we had a chance to check out the R1 and the RBZ Stage 2 in the stock shafts. I think you guys out there are going to be impressed. Good sound (similar to R11s) and it looks like even a little more improvement in spin and smash factor. Did not have time to check out every loft but will do that this week. Official release is 2/1/2013 but come in and demo them and place your order!