I am just starting in N gauge. I have bought a pre-made track set which has a poorly built overpass which I want to rebuild it using the Kato viaduct piers. My problem is trying to interpret their catalogue. What is the difference between part number 23-015, (incline pier set), and 23-16 (gradual incline pier set)? I need to build a incline and decline with a level stretch in-between for which I assume I will need some 23-017, (single piers).
Thanks in advance for any help.
Thanks in advance for any help.