@Ken-Oscale: I just found this thread but I'll watch with interest as I have a 12'9"x12'6" bedroom (corner entry) that I someday hope to make a layout in. I'm wondering how much "action" could be added if the lift-out bridge had double track. Had you considered that?
BTW, I'm now following your posts. You seem to be a Guru when it comes to layout plans!