Andrew had a large DSP&P On3 layout in DC suburbs that appeared in MR and other pubs. Has removed it and is now building Colorado Midland in SG P:48 with scratch built locos. He is an excellent builder and researcher.
I agree it's too bad the video is such a poor quality because the layout was superb. For those who don't know he had several articles in MR, one which described the building of a 3-way stub switch. The quality of his work is amazing. As someone already wrote he's in the process of building a proto48 standard gauge layout based on the Colorado Midland which was abandoned right after WW1. He is scratch building all of the steam power and probably lots more too. NG&SLG had a great article on his locomotives. What an inspiration- he accepts no excuses for not getting the layout finished!!