I'll have to try that prop on whatever I put the Saito in. I run the F plugs in both my .72 and 1.00, wouldn't run without that plug...It is one of my favorite engines, but as I'm sizing it up to the front of the Hype I'm not so sure the .72 is a good fit for it. I may end up going with one of the other two strokes on this plane. My other concern with a four stroke is the torque. This plane is built so light it might be a little much stress wise, but I wouldn't know first hand as I tend to epoxy the s**t out of my ARFs.