My take (as if anyone cares!). The Diavel had a quick shifter and the Rocket used the clutch. The Rocket seemed to continuously bounce around in the rev limiter while going through the gears. We all know the Rocket in stock mapping really limits itself in all RPMs and starts shutting down at 5.5K. I wonder how the Rocket would do with a quick shifter and an unrestricted Penner's map???? Wish someone with this set up and a friend with a Diavel could then compare the two! Anyone?