So I threw a leg over a RSV today. When I first sat on it and felt the weight difference I thought Id never want to ride my bike again. WRONG! Power was a major disappointment. The Z will walk all over the RSV. Vibration was annoying. Didn't sound near as good.(IMO) Of course the riding stance shouldn't be considered since it is a race bike, but since I dont race and neither does it's owner, why have something uncomfortable if you dont use it? Im sure the RSV will smoke the Z in corners but I bet it would take a really good rider to make a real difference.