i have an e-flite 370 outrunner that does the same thing, it doesnt get hot, but after i run the motor it wont spin nearly as loose as it did before i ran it. if i come back to it in a couple hours or more, its back to being real free again. i have prob about 50 flights or more on it by now and never seen any problems, at the same time i have always wondered if it is steeling some of my amps. i also have an e-flite 450 outrunner, 480 outrunner, and hacker A30 outrunner, none of these have this problem like my 370 outrunner. i will be watching this thread also to see if anyone else knows what this may be.

john