Don wrote an article for the Lone Star Region, NMRA, quarterly e-magazine The Marker Lamp, the Fall 2017 issue, in which he describes how Free-mo S-scale is being used today, and how a club might adapt to a Free-mo style layout.
If you are a member of the NMRA Lone Star Region, you will have already received your printed copy. For those who aren't, the Lone Star Region graciously shares the electronic PDF version
on their web site at:
http://www.lonestarregion.com/node/4.