thedeeman

I concur with what Mr67Stang said. I have both along with a few other types (Super Tigre, Tower, etc). All of them work well. I bought based on pricing at the time. My 4 stroke OSs and Saitos seem to put out the same power for the size. I do have twice as many saitos and os 4 strokes but that was because at the time I picked them up new with a big discount. Yes, saitos vent a little more oil but if your running nitro you're used to it anyway and it's just a normal part of cleanup. My gas planes are nice and clean so if clean is an issue gas is the way to go. A good tuned motor will run well so that's the important thing to worrry about.