As some of you might know, I'm one of several columnists who write a column called "Getting Real" for Model Railroad Hobbyist, the online model railroad magazine. My fellow columnists are Mike Rose, Jack Burgess, Nicholas Muff, and Tony Thompson. We rotate the column, so no one contributor has to come up with a column each and every month. It's also interesting to get different perspectives on the subject of prototype-based model railroading.
The March 2013 issue has a long column on the process I went through designing, building, redesigning and rebuilding my Central Vermont Winooski sub.
If you haven't seen it, check it out HERE.