What if you do this.... 30min later... it cools down.. your idle is so high your planes can't taxi (because you can't slow it down)? Then what's the problem? This is what happens to my Saito 91. When it's cold, it will run off and won't taxi safely (I will have to trim DOWN the idle), and when it warms up, it dies because it's idles too slow. Yet it flies great, hovers a 60 ultra stick at half throttle.