Is it possible you aren't using the "cast in place" CZs? I am not familiar with what Aa or AAA indicates, so I'm sorry if it means they are castable. But if that just addresses quality, as it does in other stones, it could be you are using CZs that can't be cast. I know Rio Grande sells "cast in place" CZs, although I have never tried them bigger than 2.5mm size. Jeri
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Still selling beadstands but no more Puffy Mandrels.
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