Thanks for the feedback Massey. I liked it to from a simplicity standpoint. the issue I had with double lines was that there was no room for vehicles on right side without fouling the line, and that wouldn’t be very good from a modeling standpoint. This way I can run them down the median a la New Orleans. Also leaves option open for magnerail or similar one day. the ar1 can do it, it’s in their guideline on how to use... you just power both loops from throttle instead and it flips the main/single when trolleys are detected in the loops. But I like to do night/dusk running so they wouldn’t work for me with photo sensors.