Watch the stylus as you rough. Turn the entire blank straight almost to the hifghest pont on the master/template. Then go in and rough along teh slopes and low points. When you have all but say a 1/8 inch of material to go, let the duplicator do the job. If you have slopes let the duplicator follow from the high points going down. For some reason Vega dups don't like to turn coming uphill.
Simply remember not to crowd the tool. You will have no blow ups.
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