I tore down my large 10' X 12' layout because I wanted the room back for my master bedroom and have decided on a new shelf railroad made for just switching operations on one wall. I've decided on the Badger, Blockade & Buffalo from the book, Nine N Scale Railroads, only with some modifications. I am using Atlas 55 code instead of the 80 code and am using all #7 switches. The shelf will be 16" wide and will have a hidden fiddle yard inside my walk in closet. Ya, I'm putting a hole through the wall to connect it to the shelf RR. Instead of operating it as a game I will operate it as an industrial area just outside a large city. I haven't decided on which one yet but all my DCC engines are D&RGRR. I've never used code 55 track before so it's going to be interesting figuring out how to connect the #7 all power frog switches up. I figured to use power frogs so my engines won't stall on the switches.