Doc,
Nice job on the Renegade. I always wanted to build one of those and never got around to it. My brother-in-law built a Midwest Hornet back in the 1960's, which has a similar planform, upright engine, etc. I did get to fly the Hornet. He powered it with a Johnson 36BB/pacifier/Missile Mist/9-7 Top Flite nylon prop and it was a real screamer. He finally blew the engine after getting in 14 or 15 flights..................it turned out that Johnsons didn't like Missile Mist!!!!!! The oil content was too low.....I think around 17%. They needed at least 25%. Oh well, another lesson learned the hard way.