I've periodically encountered oddities, apparently related to cloning or flipping geometry, with certain older .3ds files.  I haven't seen this for a while... but I haven't bothered with .3ds files for a while, either.  Sometimes there would be geometries with reversed normals or oddly misplaced portions on parts which were obvious duplicates of other areas of the model, when I've seen the trouble.

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.