The recommended method for wiring DCS is a Star not a buss. As I understand it the dead end we were discussing earlier results in a reflection that tends to kill the signal. The bigger the layout, the more likely you are to have problems.
Our club has two small modular layouts; 6x11 and 12x15. Both are bus wired and have zero problems with DCS signals. Our 20x40 layout without the yard area, DCS is "OK". Add the yard with eight 20' stub sidings and the DCS signal is junk.
My home layout is 14x39. It is star wired with an older TIU. Signal strength was terrible until incandescent lights were added and the outer rails were tied together at each power drop.
Regardless of how you do it, plan for a power drop every 6 track joints. Your loses are in the joints, not the rails. For making your connections, do a search for "lever wire connectors wago" on eBay. They are the best I have used.
