Well, some more tests of the smoothing reveal that the extra, inserted rows between long and short rings, can be smoothed out to the point where they cause no problems.  So they can be fixed, one way or another.  I think by inserting these extra rows using actual plane intersections a similar effect may be achieved.

Further tests also reveal some shortcomings of the current smoothing process.  It seems that vertices which are more off-center may have a tendency to fail the coverage preservation part of the process.  (See the attached image.)  This seems to be because I use the ring centers as part of that preservation, so I need a more robust approach.

So I'll be working on inserting the extra rows where needed, trying to control the seams, as discussed above, and trying to improve the smoothing.  Then I'll start on the caps for the geometry.  I'll try to fix the smoothing first, then release the current form of the script so you can all try it out.

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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.