As for movement - I have never had to adjust my stand or my saw. That might
be because of large differences in humidity between Houston and Syracuse,
which causes Karl problems that I don't see up here, or it could be because

My miter saw stand of old was entirely of plywood, but it was
dimensionally unstable to the point that I had to adjust/re-shim more
than a few times a year.

The fact that it left the shop a few times a year, and the Gulf Coast
temperature and humidity swings, were undoubtedly the reason ... very
little to do with AR tendencies when it comes to precision, but some of
that too.

--
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KarlCaillouet@ (the obvious)