agreed, but they are designed to operate to their optimum in their powerband aren't they ?
The Vortex series from the 80s were designed to operate at lower revs by setting the poppet valve to a different set position indicated by a marker. You could just emulate that setting. I would love to see a Scotty c sporting a Victa PT with one of their distinctive plastic covers fitted, or even just the naked engine! It would certainly be unique.
