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Old 11-27-2011, 05:13 AM
  #4  
brushandthimble
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Join Date: Sep 2009
Location: North of Boston, MA, USA
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I think if they get to far gone, there is no "renewing", it becomes "replacing"
No harm in trying, and there is always the back side. good luck.

FIY I believe the grooves ruin my cutting blades, cheaper to replace the mat.
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