I have finally begun construction on my HO Scottsville & Carlynton Railroad layout.  This is a fictitious ex-CSX branchline in the foothills of eastern Kentucky.  This will be my third layout in as many residences.  My first layout was a plywood prairie, a 12' x 4' bent dogbone loop; I managed to get to the scenery stage with that one.  My next was a little 10' x 6' loop in a shared spare bedroom/hobby room.  That was my first L-girder construction attempt; managed to just get to the track-laying stage when we moved again.  After intense