I'm figuring you know what you are doing and the other rider don't. The stock FZ6 runs a final of 2.87:1 and the R6 runs a 3.2:1. The R6 is significantly lighter and has roughly 15 more horsepower right from the crate. Now, providing the ride weight doesn't pair up this advantage that R6 should be pulling you hard to the century mark and afterwards things will be more even as you are running the better gearing for an all out run. I know that a 15/46 (3.06:1) makes a huge difference on the low end but again, the rider must know what they are doing or it's useless.