The results can be a bit cleaner, without all that... dang, what's the word?  Fringing?, if the hair selection or hair group is defined more carefully.  I just applied the function to all hairs in a group which was set up more-or-less at random.  It seems evident that careful design of the underlying hair group prop and its group divisions is the key to getting decent results with any hair-design tools.

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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.