ya. For a TRACK only bike I'd go R6 cuz I'm not skilled enough to REALLY handle a 1000 on a track. After taking a few podiums on a 6, then I'd consider a 1k on the track. For Street AND Track I'd go 1000 cuz I would SO MISS the power on the street - by street I mean the outback where you can open it up. I hear 1k is not a good training track bike due to it's speed into corners and torque out fo the corners - too much focusing on breaking and throttle finesse, not enough on lines, cornering. A 6 limits your Insta-wreck potential. Anyone can pass on straits... can ya pass on the corners?