When I started designing my "bucket list" layout, I was definitely going to use traditional tubular track with O72 curves. For switches, I'm using the supersnap in various forms (RMT, O Line Reproductions and even some K-Line) and they work very well. I'm running everything from prewar tinplate to modern, and these switches accommodate all the trains. With a little bit of work, they can be cut and modified to form a crossover that reduces the distance between tracks down to about 4.5". I like the toy appearance and durability of the tubular track.
