Wire gauge: I recently found a few thousand feet of 12 gauge copper wire left over from house construction 15 odd years ago. I plan on using this on a 10'x14' layout as my main power line (conventional + DCS star, all through relays). For feeders to the track, which is a combination of Ross (outer 2 loops) and Lionel tubular (slower inner loop and yard), is this wite a bit too big for direct soldering? Overengineering I understand but will that large of a wire 1) make it hard to solder, 2) be hard to hide under track bedding (Rossbed or foam Track-Bed for tubular ) or 3) be too stiff? Should I trim off a few strands if too big or should I just use a smaller gauge?
Wire color: Since I have 4 spools of red, green, white and yellow insulated wire I was going to use red for power and white for common (make sense?). I can then use the yellow and green for DC power if needed. Can alternatively use red/white for the two Ross loops and yellow/green for tubular which might make more sense. What are your thoughts?
