I know I've read about this topic before, but searching for it on this and other forums hasn't turned up any answers -- but that may be due to shortcomings in my "Searches".
It's well known that the gauge on the 2 rail Atlas through truss bridges, and perhaps others, is too wide because Atlas used the same deck mold [ less centre rail ] as they used for 3 rail, which uses a rail with a wider base [ or foot, if you prefer that term ]; the 3R gauge may also be wider. I thought substituting Code 148 rail using the inside-the-gauge spikes would solve the problem, but it doesn't seem to, at least on a trial basis.
So: What was your fix ?
Best regards, SZ
