Well, I'd concluded last year that the trouble of moving the siding wasn't worth the extra prototype fidelity. But last month, I had a change of heart - not the least prompted by discovering this in the NHRHTA Photo Library:
Yup - you see what you think you're seeing. Right there in our collection all along (or at least since the cardboard tubes containing a bunch of items were donated) is the honest-to-gosh prototype diagram for the Wethersfield Lumber Company siding. We discovered it as we were cataloging the items during one of our volunteer nights.
Talk about a shocker!
So yeah, I finally succumbed to Dave's persuasion - pushed along pretty hard by this discovery as well. The siding is on the move - but don't expect me to include the switchback. Really.