Bipe, I think I just haven't found that magic spot where the needles make lots of power and give a nice slow idle, if all else fails, I'll take the power and just tighten the wheel collars a bit. I know it's a band-aid, but hey life's full of compromises right? In researching this engine I've found your name a few times, what prop have you found that worked best? Right now I have a wood 12 X 6-10 and it's a screamer! Just looking for other ideas.