I know this is an old topic, but have any of you run 4 servos ( mine are JR 8711 ) through the Matchbox and used the optional battery plugged into the matchbox ? What battery have you used for the matchbox ? I supposed you used another fuselage switch to turn that extra battery on and off. I have used the Smart Fly EQ6 on another model and found it to work ok. I am just ready to try something more simple. Do you think that each of those 4 servos would greatly cut down on the voltage supplied to each servo ? I'm going to use the matchbox units on an old Hangar Nine Ultimate. Thanks for your help.