I see the varied opinions above as equally valid responses that reflect the spectrum of goals in freelancing. Creating a railroad that might seem improbable to some people is absolutely OK if it provides satisfaction to the modeler. Its a hobby for enjoyment, right? On the other hand, if part of that enjoyment for an individual modeler is to develop a concept that reflects real railroad practices then that's great too. I imagine a lot of us are in the middle some place on that line. What I have found for myself is that as I play around with my freelance I'm becoming more interested in making it seem a little more plausable...as a goal for myself. That interest is starting to become part of the fun of it for me.