MGM Controller, brakes sometimes.

[aqwut]

I have 2 MGM 24160s... Both of them do the same thing...
Sometimes when I let go of the throttle, the ESC slows the motor down... and that's really killing my pinions... and spur gears... I've tried program every single paramater... anyone have the same problem?... I've tried it n my 3pk and and a plane fm radio with only throttle trim and steering trim... Are the controllers suppose to be like this?