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“I will likely be in the minority”

No you’re not. I have a few bone and Ivory, with glued cracks, they will stay that way.

I would be concerned about the size of that crack though. At least...

The best way is to unpin it, and if you are unpinning the pivot…

Cleaning the crack is the trick, otherwise the patch may not hold and will still be seen.

Try a tooth brush and some simple...