Yep you guys were right the mega motor is junk. When I was running the other motor it was acting up because my 4S was at 10.6volts. I charged it back up to 16.8 and had no problems running. Dang I'm stupid. I know the voltage cutoff doesn't work at custom 12.3 or 12.0. Glad I bought one of those antipuff lipos. Guess I'll try the medusa motors.