I'm getting near the end of building inclines. Atlas track on 4.5" centers and WS risers doubled up at 5" has caused some (builder) errors. I'm correcting them. If I were to start over again, I think I would use single 2.5" WS risers and build up them out to 4.5" with 2 layers of 0.5" foam sheet material. It would also be less expensive.
I'm working on installing the Atlas double track plate girder bridge; you can see in the background.