I am glad I found this thread, I was about throw this engine (Evolution .46) away. with a full 6 oz tank, I had 8 dead sticks once the engine got hot. Just because I didn't care any more what happened to this engine, I put some Magnum 30 % heli fuel in it, and boy, the sucker runs like a champ. Idle forever, runs great all the way through. and when it landed it was nice and cool.
But I will try taking the baffle out of it tomorrow, and go back to the cool power 15% and see what that does. If not, I will run the Magnum 30% heli fuel in it (lots of power)