Howdy Frank,
Interesting comments. I had a chance to speak to a friend of the family who owns a hardware store here. He confirmed that raw materials inexplicably tend to move in tandem with blue but aren't as tightly pegged to it as land. He also mentioned that regardless of a high or low brecha, slow periods allow much more negotiating room for costs.
I would love to hear some tips from you on what you would avoid if you were to do it again, assuming you would do it again!