John- yea, all 027 track and curves except for the two switches linking the inner and outer loops. I had to use 042's to make it work. One day I'll rip this down and do a bigger layout with proper radius curves but this keeps me happy for now.
Ray- I've dabbled in CAD at work but I'm far from an expert. Now with Revit, BIM, and other 3D drafting software's on the market, CAD is almost obsolete.
Larry- I've considered making a logo for my RR based on the NYC Water Level Route, called the File Cabinet Route . At least I found a better use for the tops then piling junk on them.
Bob