I always see threads about people's MMM ESC frying on them. Well I am happy to say mine is still going strong!
I only run 4S, and my batteries are only 3200 30C.
I dont lock up the brakes, I actually hardly use the brakes, only when needed.
I dont try to do standing backflips.
I always punch the throttle from a rolling start to keep from breaking driveshafts and such.
I check my temps every 10 min.
I drive in the snow without doing anything to it.
I'm not sure if I just happened to get a good one or if the all these failures are the result of abuse.