I got my first MMM V2 today, probably the last unit from Mike as it's out of stock now. I've just finished soldering the connectors and programming with castle link. I noticed the tight connectors touching the casing. I bent the heat sink fins. I tried to test the heat sink against all the connectors with a multimeter, it turned out the heat sink is isolated from the circuit so even if any wire touches the heat sink, there would be no short. I also dismantled the switch and bent the rocker contact a little to have a tight contact. I tried to run it with 6-cell nimh with 7700 mamba motor on the table, no full throttle just about a third. I'll leave this on till the voltage on nimh goes down to 6 volts.