Tom,
Great layout! You should be commended for creating the layout description pdf.
I have a question about grades for classic Flyer trains. I have build several AF S layouts over the years. They have all been flat tops without any grades. I noticed the use of the trestle set on your return loop. Do you experience any great speed build up on the downward leg and will this lead to catastrophic derailments?
I am considering building the 28141 display layout from 1959-60 which fits in a 4x8 board. My concern is a train running off the track. Any advice?
Jim