Is this a known thing? I haven't encountered it in anything I've read
to this point.

When the last surface honed is the trailing surface of the blade, for
example, the plane blade back on a bevel-up low-angle plane, and the
bevel on a conventional smoothing plane blade, acts noticeably sharper.

I'm using a 8000x stone as the final grit. Could be a final
"burnishment" of the edge, resulting in a slight upturn?

er
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