Originally Posted by Hobbsy

Fly, the earliest Saito .80 had 15.5 to 1 compression and demands respect, it will kick the prop off if it even thinks you'resetting it lean. When leaning the HS needle, sneak up on the peak as in one click, pause, one more and pause. At some point one of the clicks will slow it a little, that's as far as you dare go.