Hi, 4 weeks ago my friends GTB went up in a cloud of black smoke, 2 weeks ago so did mine. I have been told the GTB is prone to this especially if the transmitter ISN'T tuned on, the battery in the car is connected and the wheels / steering is turned, i'm told because there is no diode in the circuit the stering servo, back feeds to the SC, so burning it out. We have both gone for the Speed Pashion SC.