LOL - no worries as I sometimes only get a piece of things. What he talked about, the long triangle of material, and then cutting it into 1" or small pieces, made sense to me. I don't do math, so I simply took his measurements, made the long cut, cut that into pieces, and stuck them under the trestle as he suggested. My little 462 climbs the grade in slow gear without a problem!
I can now use the extra width on top to lay my track bed and cover the foam material on the sides with either brick or rock, you know paper print stuff. Took about an hour to do and works fabulous!!
Thanks - Steve
And always my pleasure to renew something really old.