Starting to get things working,but.....
I have all the switches on 2 SC-2’s and they are working great. I have 5 spurs with 5 #37 uncouplers on 1 SC-2. I think I have them now working. The problem was some of the cars I was using were O27 and they didn’t have enough height above the uncoupler. Using O gage cars seems to work. Also on these 5 spurs I want to use 1 SC-2 to turn the power on and off to each spur. When I run power to a SPST switch I can turn the power on and off. When I take those wire and attach to the SC-2 it doesn’t work. This is after I have programed the SC-2 to run only accessories.
I will let you know WHEN I get it figured out.