heres the thing I will put a new brushless in the losi if thats what I get. If I get the AE i would run that until I feel that it sucks or fries out. I guess im leaning towards the AE just for the fact that it is brushless but how good is it really. Castle Sidewinder good? If so I would leave it in there. When I had my momba system in it was almost to much for my blitz.