Broke my rule - Sundays are reserved for my layout not customer work. I wanted to finish up some building flats (see Sunday Scenic Showcase).
My plan was to wire in the Ross 4-way. I will do so this W/E. In the meantime I have attached some 'circuit diagrams' I made. They cover switch control, non-derail, and turnout position indicator lights. As you can see I use Z-stuff 1008 relays and their beautiful 1011 detector (just make sure you tape over the IR sensor). I have wired the 4-way once before so am close to 100% confident the diagrams are good.
Joe