I had the pleasure of discussing Givens and Druthers with Brian last week. As always it is fun and informative talking with him. Part 1 "Givens" discusses the definitions and givens of model railroading such as room size, curvature and various other considerations. Part 2 "Druthers" help define your preferences for style, purpose, and form you'd like to achieve and clarify what is important to you.
As always Brian it is a pleasure spending time with you.