Ok - I get it now.
Slapped into one of my guns (ICS M4, Stock 18:1 gears, Perun Hybrid with AB disabled). No modifications needed - straight drop-in.
Impressive. Most Impressive.
Been spamming the trigger fairly hard on an 11.1v for giggles and the motor is cold, as is the wiring and the battery. Performance on 7.4 and 11.1 is fairly similar in Semi.
Can't comment on long term reliability (obvs), but as a drop-in upgrade for a bone stock gun, it certainly seems to give a trigger responsiveness and ROF performance that will keep 95% of players very happy.