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Old 05-08-2010, 04:11 PM
  #7  
Marge L.
Senior Member
 
Join Date: Mar 2010
Location: Marengo, Iowa
Posts: 802
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My Viking dealer told me not to use the invisible thread in the bobbin. Come to think of it, he didn't say which one not to use, Perhaps he didn't realize there are different kinds. I didn't think to ask either. I use it a lot, but only on the top.
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