Here is my take knowing what I know today..seeing things with my own eyes, not reading it.
A couple of weeks ago we tested the Tsukigi Canon (buddy's grudge contest) we also tested the Brocks SMEG and the Yoshimura R-77 on three separate Hayabusa's Gen II all 2008's...well the results were interesting....The Canon pulled 184 HP, the Brocks 177 and the R-77 174..or something like that...
Realibily: The Tsukigi bike pulled like numbers (4) times in a row on the same dyno, four different days while I developed our base map.
Of course the R-77 guy wanted more and purchased everything identical to the Tsukigi Canon bike.....well he gained 1.4 HP. So
the moral to the story is maybe the grass is not always greener..and you are always not dealing with like bikes, this test proves it. I am glad I saw it for myself or I would have never believed it....same gas and tire pressure......
testing really answers questions.
Greg