- Joined
- Jun 29, 2011
- Messages
- 931
The only backup/exact duplicate I have is for the Superblue Stretch. I thinned out my user with a very thin convex edge. Shortly after I bought a backup just to be safe. The user is still going strong with no sign of catastrophic failure in normal use, but having a backup freed me up to use the other one without worries.
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