Thanks, dodger. Excellent explanation. I'll file this for reference. So, by importing 3ds into poser, the default actually becomes 6 digits. And looking at a few obj files, poser's own obj export also seems to default at 6, as opposed to uv mapper's 8 digits. Everything I make goes through these 3 steps. 3ds to poser obj to uv mapper obj (saved without normals), then used as external Geom. OK. Now a question. Pretty much everything I make, which is all furniture and non-organic stuff, goes through uv mapper and I use split vertices on it. Is it worth my while using the 'weld vertices' option on everything too? I check frequently for degenerate facets and never seem to find any. But will welding first, then splitting, help in any way, either in model improvement or file size? I've tried it before and using lose a few vertices, but since I don't really know what it's doing, I'm leary of using it on a regular basis. mac PS 'Poser doesn't grok it' LOL. Been reading 'Stranger in a strange land'?