Long time reader, first time “poster”, so please, be gentile… I have a Evo .45 TPS spinning a MAS 11x6, running 15% nitro, and I have tried just about all the plugs offered by O.S., and also the 2 and 4 stroke “super” plugs form Hangar 9. None of which will last more than a flight or two, and then there shot. I’ve had the “pro’s” at two local clubs take a look and quite a bit of time of adjusting the needle valves (high and low) and it still runs like crap on the whole. Do I have a dud motor, or is a FNG like myself just missing something here…. Any input at this time would be helpful, Thanks