Alright, so I'm looking at a wb2 with a 701 but just kinda wondering what's the difference between a wb1 and wb2? wb2's are a little bigger correct? 2 seater friendly? Also I'm thinking of swapping 701 into my sn sj, what will transfer? Is the 701 in the wb2 the same as in sj's or what the waveraiders come with, i.e. less bottom end? And putting the 650 out of my sn sj in the wb2? Also, are the motors 760 wb2's any different than a 760 outta anything else? Would it be better to swap into my sj for freestyle use? Thanks!