Quote - I guess what I could conclude here is that Wings' symmetry tolerance when mirroring is around what LW would see as 3.01-3.02 µm, while Poser's must be considerably less accurate. Or maybe it's that Poser requires far more accuracy. I'm not sure in which direction to look at that.  ;-)

It has nothing to do with Wings3D' s tolerance. The mesh goes through several steps of post-processing, during which the numbers get rounded. I thought six decimal places would be more than enough. Apparently I was wrong.

-- I'm not mad at you, just Westphalian.