@BlueComet400 posted:These rails add structural strength to the decking as well as improving the appearance. I highly recommend this product.
This is what I ended up doing, and for the same reason: I needed to clear the tracks on the main level.
For the railings, I'm using this outstanding product made by Clouse Model Rails:
Nice work, BC! It looks something like my effort, if it ever grew up!
I like the railings you used (better IMHO than my homebrew efforts!), and in addition to looking nice, I think they would provide some additional rigidity without having to glue splines under the roadbed.