Bryan was an information fountain and he really believes in his/your product. your theory is so different from the air flow one I have been exposed to that I have to do more research and think about it all.
Instead of just "selling" his product, he explained the sub cellar problems and let us make our own decisions, but it was very clear to us that he believed in his product and recommendations.
He offered alternatives and realities. I liked the fact that he didn't try to force his beliefs on to us. And I am no longer so sure of the air flow theory.
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