It may be hard to see in this screen grab, but by selecting all the polygons on the right side of the face on the X axis in symmetry mode in Lightwave, all the symmetric polygons on the left side will be selected. They're highlighted in yellow. The polygons that aren't selected on the left side  aren't because they don't correspond perfectly to the ones on the right. If I select all the polys on the left, it shows a similar result on the right. The polygon *count* is identical, but the polygon *placement* is not.

Not that I'm complaining of course, just one of those observations I've made.

BTW, that is the original mesh, from the geometries folder, with no alterations.

Olaf, if there are any tests you can think of, anything you'd like me to look for, let me know.