Does this feature still work on a BNF Parkzone Spitfire Mk IX if you change out the original equipment Spektrum receiver for an older Futaba 7ch PCM receiver and radio? If I cut the radio while the main batt is connected it kicks the motor to around 1/4 throttle. Could be a very bad thing if batt gets too low lol. Thx for any input u can share.

Hangtime