I have a 2-rail layout built with MicroEngineering code 148 track and switches from Signature Switch Company. Operation is absolutely reliable, and I have never had a derailment that wasn't my own fault in some way. I know this discussion is focused on improving 3-rail track, but in my humble opinion the best way to improve 3-rail track is to drop the center rail and go to 2-rail! There is actually a lot of equipment available for 2-rail O-gauge (I'm not talking about Proto 48), from Big Boys and Alleghenys that demand a large-radius down to F-3s/7s that operate nicely on smaller curves. I am only bringing this up in an attempt to gently push some current 3-rail modelers into 2 rail. Also, as the Baby-Boomers like me die off, there will be a lot of 2-rail equipment coming up for sale at good prices. Just saying ...
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