Hi all , getting started to wire some of my track on my layout. Should I wire both outside rails as common or is wiring one rail good enough. I was thinking of soldering a jumper wire between them. Also how often should I wire the track for power and common wire. My layout is going to be about 40' long and 20' wide. With 3 main lines a yard and train service area. With each section insulated from each other and have a single pole switch to turn the sections on and off . Thanks in advance with any answers and suggestions.
