Just a couple of years ago I was using a preconditioner a friend gave me. It looked more like those things woman used to curl their hair. I screwed it to the edge of my work bench, plugged it in, and the shell was put on it upside down. AS I turned it I would hold a candle to the edge of the shell making sure it had plenty of wax. A woman's curling iron, or what ever you call it, works just great.
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Paul Harm
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