Thanks Rio, I will keep that in mind. I just picked up some #6s on Ebay, but will still consider the #8s as I do have some auto racks and 89’ flats.
You will probably be happy with the #6s.
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You might like #8s better for crossovers with the long cars.
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-Kevin
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Sidings can be geometrically like crossovers which is why it may be better for longer cars. Of course #6 turnouts in yards will have A curves but operations are much slower in yards.