I think that Donny may have gone AWOL, however I wonder if he was maybe using a DX6i Tx?
The DX6i always had an issue in that closed throttle and throttle hold did not give the same % of closed throttle. Thottle hold was 'more closed' so if your ESC was calibrated to see the throttle hold as the throttle closed position, when you released throttle hold the motor would spin even if the throttle stick was closed. You have to set the throttle hold throttle curve to +10% rather than zero.
Alternatively avoid the issue altogether and ditch normal mode. Set all your flight modes as 'flat-line' idle up curves and start and stop the motor using throttle hold.