CBS072
I found your comment below interesting on braking or retarding the rolling cars.
" the Dodge City Kansas Train Show. The club is out of North Platte, Nebraska. They used air blowing thru small tubes between the rails to slow the cars."
Adding electrical retarders would be required for each track or air tubes, with some kind of valve for each track. In your video, I think I can see each car slightly slow down after the first 2 feet or so, after being turned loose. It looks like it works very well, my first model hump yard in action.
Charlie
