I have finally moved things around the garage so that my SO can use
half or it, and I can use another half of it. The Clausing is now set
up in a very convenient (for access) location.

I want to set up and level my lathe now, to try to measure its cutting
accuracy more properly. To that end, it would be a lot easier to set
it and level on three 4x4s under it (two on ends and one in the
middle) and level with wood shims.

Doing so would be very easy and allow its future more with a pallet
jack.

If it would lead to proper leveling and proper measurement, in the
short run, but would go out of level in the "long run", that's OK with
me as for now I just want to assess it better. If the lathe needs
rework, I would disassemble it to take the bed for grinding. If, after
leveling, it produces acceptable to me results, then I can set it on a
concrete floor to run forever.

Anyway, the question is, would setting it and leveling (with shims and
machinist level) be sufficient to get a accurate answer about its wear
and to quantify its ability to make straight cuts.

The lathe in question is Clausing 13x36, with a solid base that runs
full length of the machine.
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