B Smith posted:This is what I think of as a closed-frog switch. I had some on my S-scale AF layout in the late 50's, along with flexible brass track on fibre ties. It's actually a pretty nice mechanical solution, although it is not an accurate model of an RR switch.
Yup. That's it. It may not technically be accurate but then again a center 3rd rail isn't either. This solves all wheel problems.