Quote - Shane:  for as long as i can remember Poser has had rounding errors on import/export.

so say i export Vicky, make a full body morph for her, and import her back again. she will have subtly shifted -- usually she rotates a bit on her Y axis but its totally random. we are talking very small movement, but it happens EVERY time. so by the time youre finished a figure, all these cumulative translations add up and it will no longer be symmetrical. this is not really detectable if youre making some major morph like working on the torso or legs -- but start morphing the fingernails or toes and all of a sudden you realize that its not in perfect symmetry anymore.

you cant really test this with the SM figures because none are symmetrical -- i assume because during periods of their development they were imported/exported from Poser. fixing the symmetry on both Alyson and Ryan was the biggest PITA when working with them. and no, its not so simple as hitting 'restore symmetry' in zbrush - it was actually a pretty tedious process :(

RDNA's michelle is perfectly symmetrical, so if anyone wanted to test if the rounding errors are still there with GoZ all theyd have to do is go through the GoZ export/import several times with her, then take her back into zbrush and try and morph her fingernails using symmetry.

Oh bloody heck, you just answered my old issues with mirroring full body morphs work in Cinema 4D 8.0 some years ago. I had a plug in for Cinema 4D that recognized symmetry and mirrored morphs made in one side of symmetrical meshes. Every time I passed the object file back and forth between Poser and Cinema it would fail to see the obj as symmetrical anymore until I added more slack into the plugins tollerance settings. After the 3rd-4th time it would always fail to see the obj as symmetrical anymore no matter what I did to it's tollerance settings and would not let me mirror anything from left to right. It completely stopped me from doing any of my own full body morphs so I just gave up. From what you are saying I get the impression I may have been banging my head up against that rounding error and didn't even know it.

My brain is just a toy box filled with weird things