Django: You just need to cross your fingers when you get your MMM...some are good and some are bad. Other than the fan, my 2 MMMs are both from the first batch and are both working good on 4s and 6s with Neu motors. Both are still running the internal BECs. Unfortunately my Savage fell victim to the power of the MMM, 1515/1y, 6s combo and destroyed my rear diff pinion.
Joe: That tray looks great. If I hadn't already milled my own delrin tray for my buggy I would pick one up!
What kv Neu are you running? 2700kv? And what weight diff fluids are you running?