I think the OP’s question was answered but in case anyone else is interested my clubs new layout is going up in the same manner we use 1 common bus with 4 Hot buses for track and 2 hot buses for accessories. We also used 360W PowerMasters to allow for conventional operation and running DCS in passive mode. We’ve been doing this for almost a year now everything has worked as expected so far. For passive mode I used a 22uh choke Mounted on a PCB in the Hot line from the PowerMaster before the bus.
Here’s a video on the layout. It’s a year old now but might help