30 mm is really close. If I had my druthers it would always be narrower rather than wider. I have always been intrigued with the idea that, with a window seat, my arse was outside the rail head - outside the outermost point of the crossties. Fun thought, going over trestles.
But we are, as a hobby, moving ever more toward accuracy, especially our 3-rail scale buddies. We shall have to fix this scale/gauge problem. I vote for 17/64 scale. I admire the Proto-48 crowd.
