My micro 2 rail layout uses the older atlas switches. By micro i mean 2 ft by 8 ft. No run around so i avoid s curves for the most part. The tight radius fits right into an industrial design. I use an atlas sw switcher and a bakers dozen weaver cars, 40 ft scale length, all converted from 3 rail. The tight radius is not much of a concern if you keep the degree of change short. The only concern is coupling on the curve is next to impossible.
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