Keeping this thread bumped. Kershaw comes out with their design Wednesday. It features a plastic spur gear. Don't know about that, hope it's better than their Savage direct drive unit.
Talked to Dan at Kershaw. He said a few more weeks on the kits. I think I'll get one and try a double motor combo. Two 1521's with two MMM's on 6S each. Experimenting is often more fun than actually driving! Also, my neighbors are ready to kill me after my last run with my new DDM V2 Dom pipe.