OK, I am not the perfect wiring guru.
I had a 11 foot by 23 foot Figure 8 with wyes across the middle and 5 dead end sidings.
I ran DCS and TMCC on the layout. DCS used 2 channels fed by 2 100 Watt bricks.
I had all the sidings isolated and fed from a connector block through toggle switches, but I rarely turned them off.
I powered the main at both ends and had no blocks in it.
Did this cause DCS issues? Yes, 2 places roughly in the middle between the power drops had poor signal.
The trains ran through them anyway !!! If the whistle was blowing when they hit that area, it kept blowing until the y left the area.
Big Deal? NO.
So yes, DCS needs more attention to the wiring for perfect operation but it is not really that picky.
Also some Modular clubs have used DCS with BUSS wiring. Yes, it needs lots of Susan's Filters but it works, and those filters are CHEAP.
Have Blocks, One power drop per block with a filter at the connection and you will be fine.
/End Soapbox/
edited for spelling and format
