Iteresting article. Shane, I too was shocked about the wooden markup. I know something similar was used in submarine construction up until about 5 or 10 years ago. It was the best and cheapest way to make sure things fit.
I am guessing Claude and Walter used computers as the transitions etc are way to smooth to have been done entirely by hand. (bu that's just a guess).
Attic, Closet, then basement? these fun places are getting more interesting names