I tried to sell my two cents worth, but no one would give me a plug nickel for it.
I don't have a leg to stand on.
QUOTE: ...If 80 and 55 can be mated with just a bit of shimming, I'm sure the two code 55s will work easily. I have some of both the Atlas and ME 55 and did, in fact, slide the two together without doing a thing to them, when I was experimenting and deciding which one to go with for my current layout-under-construction. One thing you should be aware of, there are still quite a few N-Scale products whose wheel flanges will bump on the ties of the Atlas code 55...