The only difference is that I used a 12 gauge ground loop for the common in the old layouts. Since this will be DCS I am going to have to run equal run star wiring. The DCS book says you don't need to run the common through the DPDT switch, but it should be of similar length. I'm still not convinced that DCS is the way to go. Since I'll be wiring the layout basically like a cab-control design, I may just stay with that, since I'm not sure that I want all operations to be via a hand-held controller. I still like to feel the control levers in my hand to make the trains go. It's also easier for little ones to run the trains via direct transformer control.
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