Fun stuff, Erik -- Sometimes 2014 seems like yesterday, and sometimes it seems like ancient history. Here is what our portable layout looked like in 2014:
https://dl.dropbox.com/scl/fi/v1fs1kvbszs43eaja2onn/2-rail-O-Scale-2014-Plano-Texas-Train-Show.mp4?rlkey=m8f0ed7wdmhdom2i9gbdnd6jsAt the time, the layout was single track with 42" radius curves. The RSD4/5 shown in the video complained going around the tight curves. And forget running passenger trains. Later that year, we began replacing the modules and adding more functionality. Without ever "starting over", we morphed the layout into a double-track mainline with 61" and 65" curves, with a long double-ended yard, full-length lead tracks, and decent industrial switching area. So for us, 2014 is the "before times".
Jim