I think I would have to see how your geometries are aligned for the comparison, to offer much speculation.  My best guess otherwise would be that the cutoff distance you've used is still too low.  The raycasting box is un-checked, right?

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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.