I own a 2000 Yamaha R1: It is stock with the exception of a slipon Yoshimura can. I also own a 2019 Hayabusa (500 miles on it) with Yoshimura slipons. The math says that the Hayabusa has more horsepower per pound than the R1. The R1 pulls noticeably harder (from a stop) than the Busa. The Hayabusa definitely pulls harder at 70 plus mph. Is this gearing, break-in, or something else? I was under the impression the Busa would take an R1 across the range.