Holy cow!  What an update!  The Mesh addition is wonderful.  :D  I've been looking at the readme, and I don't think I've quite managed to absorb it all yet.  There's a lot.  Which is good! 

The new example script is quite, what... sparse?  At this rate, all of TDMT (save perhaps the GUI) will be able to be written in only ten lines of code, thanks to the .pyd!  LOL

I was looking at the readme and noted the comment about addition or subtraction returning nothing useful for ngons.  I could imagine addition simply merging the two, creating a new ngon with the combined vertices of the two original ngons as its outline, presumably with any resulting inner verts removed.  Not that I expect it to be added to the .pyd.  It just struck me as a logical way to think of polygon addition.  Subtraction would leave me a bit more puzzled.  You don't want to punch a hole in an ngon....

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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.