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Old 04-02-2017, 01:02 PM
  #6  
nativetexan
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Join Date: Feb 2009
Location: home again, after 27 yrs!
Posts: 19,388
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i've used insul-brite before and noticed tiny silver shavings inside the bobbin area. Didn't like that so really haven't used it much since then, so just clean machine fairly often.
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