I think you can think of it in terms of before and after the banana... refering to the gay seat situation. seems silly to have 2 bikes so similar in pricing that are so far apart in performance... the major difference being how the aftermarket performance products accomodate. Soon enough you'll be hard pressed to find racing products for the F4i and have to pick through the used section and junk piles. (Finally ohlinns has acknowleged the honda 600 class.) There are far too many base improvements you just can't duplicate as the potential of the RR exceeds that of the F4i. The same way the F4i did the F4. I don't get really excited about stock dampers and things like that though, as they are (CRAP) and immediately replaced by those who care... lol. Seems Honda has moved into the modern era of styling on these RR's too. Unlike Yamaha that made the R1 into a styling joke. I think it's a beautiful bike and the top of the 600 pile in my opinion. Can't agree more about the F4i being better than the other top brand equivelents. It "was" the race bike of choice so it can still be... unlike those other brand's lesser model "BS" bikes which were meant for who knows what.