I have been working on a track plan, but I am having some issues with it. I already have two O72 Fastrack switches, but when testing them, I found that Prewar American Flyer locomotives do not like these. Fortunately, I haven't built anything yet, so I can change the track plan. Unfortunately, I like the one I made. But, it would result in my tinplate being stuck on shelves, which I am not a fan of.
So, should I consider five-rail track? I've seen videos of it and I like that it allows both Standard Gauge and O gauge to be run.