OK, so I've built a couple of layouts before, but many years ago so I think I'm losing my mind. I just finished wiring my new N scale layout and I'm getting overload indicators on all three cabs. I want to troubleshoot this with the most basic of questions. First, I ran a common, bare copper ground wire around the entire layout and soldered all of the common track wires to it. I assume that is OK. I then soldered all of the Atlas common turnout wires to that same bus...now, is that OK? I also hooked up all the common wires from each cab with jumpers....meaning I hooked up one terminal from the variable DC, fixed DC and fixed AC all together...it that OK? I just want to get a start on what's wrong here. I had previously wired a amuch more complicated layout in the late 80's and it worked perfectly. I thought I copied that but maybe I'm wrong!