Yes, all good and true, just so you know this was done within a 20min window so couldn't do too much fiddling with customers breathing down my neck waiting to get their bikes on the dyno.

Yeah both runs was done with fresh top ends, will see if I can get another one with the flywheel back on.

Actually the motor is not 100% setup yet because there is a .10 difference between the two squishes because of the one barrel being a tad shorter than the other. The one head volume is also not 100% the same as the other.

It does not really matter in this comparison since the differences where there with the single ring pistons a year ago too...

- some reading glasses perhaps ?