This stuff sounds really good, but it's obviously wrong. Just ask Friedman, or Ragozin if you can find him. Peterson? Who's he?

I quoted Ragozin's amazing position on this subject (taken from his book) in "Changing Track Speeds" (Archives this site). Friedman scoffed at Brad Free some years ago for talking about exactly what Bruno does in his piece-- how shade (or the lack of it) affects moisture content in different parts of the track, which in turn can make them different "speeds", affecting one/two turn relationships, for example.

Seriously, ask Friedman. He can tell you how they "objectively measure the resilienc(ey) of the track".