My new MMMv2 lasted about a week with probably about 6-8 packs through it. It was working just fine up until Monday.
I had it down at the track practicing. I ran about 2.5 packs through it no trouble. Then about halfway through the third pack it just stopped in the turn at the end of the back stretch. At first I thought it thermalled. But it's dead meat, no lights, no nothing. The fan has a couple of broken blades. It may have stopped before the esc did, who knows.
Castle said to send it back and they would replace it. No hard feelings on this side. Thanks Castle