My question is, If I have two loops of 3 rail track, Inner and outer loops and they are connected together with 2 switches so I can get the train from inner to outer loop. I'm using 1 channel from the TIU for the outer loop and a second channel for the inner loop. Should the crossover switches be isolated at just the center rail or all three rails? Each TIU channel is powered by a separate z1000 brick.
Thanks Chris