I've been going back and forth riding the RC and the 6R, up top the power difference is slim if any. The main things I notice is the Rc holds a line like nothing I've ever experienced and it has gobs of torque down low. I can live without all the torque down low, besides I think it's more exciting to ride up in the 8-10k range. I ordered a stabiler for the zx so that will help me to stay a little more planted in the twisties... Overall I think I will be happier with the zx over the RC..