Ok, I'm adding two reverse loops to make second main line. The lionel switches have a constant voltage pin that is used when you use TMCC as they say the constant 18 volts is not good for the switch. The switches will activate them self with the anti derailing feature when the train goes around the loop to come back on the same track. Now, is there a way I can lower the track voltage, maybe with a resister or something, going into the constant voltage pin so I don't have to run a seperate wire all the way to the switch? I can pick up the track power with a jumper wire just ahead of the switch but I need to lower it down to about 10 volts before it gets to the pin on the switch. I can't be the only one who has ever wanted to do this.