You might check it with a loupe to see if there is a tiny fleck of glass around the rim of the jet. Something on the face of the torch next to the jet opening can cause this effect. Also, in case you didn't do it this way, crank up the oxygen when you run the cleaner wire in the jet to blow out anything that might come loose.
Robert
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Robert Simmons
(Former) Director for Bead Donations
Beads of Courage, Inc.
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