After forty years in the glass business, I've seen issues like this in automobiles many times over the years. I doubt it's an installer issue unless a small fragment of the old windshield glass was left in the rubber gasket. More often, the windshield shape is not exactly correct. The curve could be off just enough to put stress on the glass. I would try a different brand.
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2004 40' Monaco Windsor PDQ, Cummins 400hp ISL, 4 slides, Aqua-Hot, 1900 watts solar, Mini Cooper S, Gig Harbor, Washington
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