I had last week off and burned 6 gallons of gas in 7 days! Can you imagine what that amount of flying would cost on glow? You know, the G26 is a very promising engine. It has lots of power for the weight and its pretty cheap, too. i put a slimline muffler on mine and have heard that combination yields 15 lbs of thrust! That would be plenty for most 120 sized planes. Its worth a look. Too heavy for most 3D applications, but for starting in IMAC I think it would work very well. I have a Wild hare extra Special 28% coming at the end of this week. That's going to be my next IMAC bird. I can't wait!!!!!!