It worked well for me. I put in a smaller blade to get the proper clearance, put the insert in, clamped it down, and turned the blade back up very slowly until the slot was cut.

Now, I have a belt drive table, so if the blade binds, at worst I need to buy a new belt. I did have a finger on the off switch the whole time.
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Fred

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Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!