That was a great thread, I subscribed to it! Will give the rock mountain a shot.
Got all the insulated track sections in last night. Also installed the derelict track section near the maintenance building for the smoking caboose and operating boxcar. It will be four sections of track long with a bumper on the end. Lastly, started running wiring for the cloverleaf track section, and the o27 mainline.
Had a pleasant surprise when I opened my newly acquired 1121 switches. They are already wired for constant voltage. There are a few other tweaks as well, a real professional job.
You can see the constant voltage knurled terminal in the corner.
Looks like the work was done in 1980.