Yeah, the cogging wasn't always a problem, but when you're running on a track, you can't always see or hear that it's cogging and for some reason, we kept tearing up gears because the motor was jumping from reverse to forward so violently. I've only seen this on two MM controller, but it happened none the less.

I'm not having much luck with the MMs lately. I guess I'm either pushing them too hard or just plain expecting too much out of them.