Below is a layout out that I've been playing around with. I'll be using realtrax on top of two 4X8 tables. The turns are o42 and o31. The elevated track has a 6% grade. I have six o42 switches to work with (3 left and 3 right) so I can do the figure eight reversing loops and either the two sidings seen on the top or the run-around on the left side. What I'm going for is a layout that can run two trains at once, has a track that can reverse in either direction, and has some elevation/over-passes. I'm interested to hear what folks have to say about this design. Any and all comments welcome especially around if I should use the two switches for siding or the run-around, or something else. The one thing I don't like about the run around is that I don't have enough room to put an un-coupling track in the middle of it.