hello ,,yes i have the regulators on the battery input ports the power jack only regulates the signal wire output of the receiver and boosts it to 5volts plus distributes the servo voltages through high current traces that are directly from the batteries which in this caes are lithium ions regulated down to 6volts into the power jack,,never had a servo let alone 2 on different channels stop within seconds of each other and let smoke out ,,wondering if it is a signal voltage problem which would be related to the power jack or if these servos just don't like a sustained 6.1 voltage for a long period ?