I have a 2010 R1.Bouhgt new in november.Rides like my old sp2 low down the revs and my previous bike(06zx10) as you progress through the rev range.I chose the R1 as its the only new thou that isnt shrinking.The new blade felt smaller than my first bike,a 636.The zx10 has shrunk also.Being 6"2 its a perfect match for me.I also looked at the rc8,very nice bike indeed.