Double slips are a good space saver and allow multiple routes in a short space, but they ae generally used during low speed operations. Hopefully it is well engineered and manufactured so trains will pass through at speed for you.On the back wall I'm trying to do as many turnouts as I can to allow the trains to switch from all 4 tracks as I can't really have cross overs too many other spots on the layout as most of the track is curved... I'm using a double slip switch instead of a crossover to allow for more flexibility...
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