Old 12-06-2015, 05:17 PM
  #15  
Onebyone
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Join Date: Jan 2011
Location: Southern USA
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Aurifil is 50wt 2 ply. Most 50wt threads are 3 ply. The Aurifil is thinner the other 50 wt threads. Adjusting the tension and finding the right needle size your machine likes will take experimenting.
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