I'm in the ole "do I do N or HO" dilemma. I have a decent amount of HO rollingstock but I only have an 11' x 17' room to work with. I guess that sounds like a decent amount of room but I want to do a u-shaped point to point along the walls of the room with the door to the room being at the open end of the U. I just dont think I will have enough room for realistic radius's. I had originally planned to do this in N but as I said I have a decent amount of rollingstock in HO and more variety in what I want to do. What do you guys use as your radius guidelines?