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Re: 6in or 8in?
AndyMark quotes a coefficient of friction of 1.2 for the wedge-top and 1.3 for the rough-top. I do not know if there are other advantages to either though.
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Theory is a nice place, I'd like to go there one day, I hear everything works there.
Maturity is knowing you were an idiot, common sense is trying to not be an idiot, wisdom is knowing that you will still be an idiot.
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