| I feel that the RDC is just TOO long (32 inches) for the everyday garden layout. The SD-45 is just about 27 inches and just about looks " OK " on 10ft. curves. The average layout just doesn't have mega-feet of straight track or 20 ft. curves to really run the RDC and have it look "right". I recently added, what we call a "High-Line" for the RDC. It's a point-to-point elevated line using Aristo's auto "Reversing Unit Set" ART-11090. The total lenght is 50 feet and it resides behind my "on-the-ground" garden railroad. I used 8 foot lengths of pressure treated deck boards for the deck, (track-bed). It's supported by "garden fencing" metal posts, with 6x6 inch wooden deck pieces supported by "L" brackets which are bolted to the posts. These supports are on every post. The posts are placed every 4 feet. All power and controls are located in my storage building.