What about in ON/OFF application. If you put the servo on a switched signal, do you get Zero volts signal and 5 volts on the on off? Or is it again a pulsed signal? In that case, is there a microprocessor on board the servo taking the pulsed signal and changing the rotation accordingly. I understand that if that's the case. That would then explain why the minihobbies brake valve has a control board attached to it.