Originally Posted by ratshooter

Yes flying into the sun causes a heat inversion that is severely affecting the flux capacitor causing a low power surge killing the glow plug.

Just kidding. I have never used the evolution trainer system but have read several times the engines work better with them removed. It sounds like you are rich on the low end card adjustment. Do the fuel line pinch test. Adjust the high speed to full power with just a little rich. Then go to idle and and pinch the fuel line. The engine should very quickly speed up a small amount and die. If it speeds up and runs for a bit it is rich. If it dies very quickly it is lean. Adjust the low end accordingly.

Buy several glow plugs and experiment. Thats the best thing to do. Use fresh fuel and always buy the same brand and nitro content of fuel.