I made a crawler with a 2 speed transmission and have 2 servos one for steering and other for transmission overheat ecu and I lag then loose steering. Spektrum sr6100at receiver and spektrum 40a waterproof brushed ecu. Steering spektrum s614, other and have had other ones in and still does it but it's a Traxxas 2075 on aux 3 channel. Just messed with it and had no steering and ecu starting to really heat up quick.