Wow, I seriously cannot recall if I have ever heard that before but its a very good bit of information. I switched over the gas years ago because of the the mess the glow engines leave on my plane, never considered the power aspect of it...but still going gas...just good to have this info.. Thank you guys!
BTW, does glow make the engine louder than gas? Reason I ask because on this particular engine I purchased it because I like the LOUD sound of a radial (first radial engine)
Still need that 4 blade prop

Might consider staying glow.. but prop is a must have