It makes sense. Now, from somebody that's been there, done that, and has the tee shirt to prove it... Use two different color wires, and only use one color wire on one rail, and the other color on the opposite rail. It's too easy to reverse a wire somewhere and have a short, then go crazy trying to find which wire is reversed.My layout is somewhat of a G shape. The top of the G is 5.5ft long, The spine is 15ft long, the bottom is 6ft long and the upshoot off the bottom is 8ft. I hope that make sense cause it sure does to me. So the 16ga wire would work but I need to ad feeders every few feet.
The present wiring is 20 or 22ga so it is much to small. I tried to hook up the DCC system when i first got it and it would not work one iota. I bet I have a couple of miles of wire under there right now and most of it will stay as it operates my turnouts plus building lights not yet installed. I went thru several hundred feet of the small wire when I put this layout together in 2000. Everything worked fine except one small 12" section which I have never gotten around to adding a feeder to. About 1/3rd of the ballasting is done and not finished because of the DCC system waiting to be installed. I think I am afraid of messing up what I do have when I do the changeover. In my mind I know I cannot hurt it to much but my heart is not convinced as of yet. I have talked to a good friend and after the first of the year we are going to try and get together and get me started. Once I get started there will no holding me back. I just need to add some restraint to my energy and go slow and easy. I have a tendency to get in a hurry but patience is slowly creeping into my vocabulary.
Thanks to all for their help and guidance.