Interesting about run-round loops. I incorporated one into my layout Yorkford, PA (see link below) thinking it was a must. But while operating, including at a recent exhibition, I've found that I only use it to move a tanker from one industry to another. All other operations (and the tanker move, in fact) could be done quite comfortably, and in fewer moves, by pushing or pulling from the fiddle yard.
So my next layout may be even more basic and not have a run-round - I can go down to 3 turnouts instead of 5!
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