the 80a esc is underrated. if the MMM is a true 120a esc, the 80a ezrun is a 90a or 100a. also, the 150a ezrun,going by MMM standards would be about 140a...i made the mistake of changing the settings on my ezrun and got the magic smoke, so i sent it in and got a refund. now, i'm going to get a MMM because i want to be able to do what i want with the settings without starting a fire