[SpEEdyBL]

I tried running my HV4.5 on the MM and it cogged sometimes but when it did, it was pretty bad. Novak motors are way more efficient than feigao motors though. They may even be more efficient than the Neu's since they are essentially the same internal design (though 2 pole) and they have sintered rotors which makes them even more efficient. What I think you should do is just get a cm 4600 which should still be more efficient than the feigao. Gear it down so it matches the speed of the 12s.