I have tried gas and glow and have found my Moki's to be excellent.As far as performance my Moki's run so much smoother than my gassers.Vibration is so great on one of my planes I had to put on flying wires on to keep the tail feathers from vibrating off.I balance all props.As to fuel I fly my Moki's on no nitro it still is not as cheap as gas but after spending $1200 and hours of work 12.00 for fuel is not all that bad.I also get more power for less weight with glow.Gas does have the advantage of less oil on the plane but I don't mind.