I was using d.sign 59 by Williams but earlier this year I switched to Spartan Plus also by Williams. I only have one porcelain oven and the silver content from the d.sign 59 was I think effecting the porcelain. Spartan Plus has 78.8% Pd and 2% Au with no silver. It works for me, I don't look for cheaper metal or shop around for a better deal, the doctor pays for what is use so I don't cut corners.
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