Burg, I can GUARANTEE you your friends who moved up did not TOUCH the potential of their 600s. It takes alot longer than a month to be able to come close to what most 600 sportbikes can really do, despite the poplular belief. Now, if you want just straight line fast, go for the bigger bike. I'll stay with you til we reach about 110, then you'll pull away, with a top speed about 10-20 mph faster than my R6 depending on how big you go.