Cage,
Thanks for the explanation of the script and its use.  I sent you an email with the mesh for you to examine. I'm more alert today and I checked my mesh, and discovered the centreline has an X position of 0.004858 therefore there is a small asymmetry, which although not visible in Poser, is quite large in numerical terms. I apologise if I caused any concern regarding your script. My mesh is clearly in error. I will try to recenter the mesh and then run the script as you described.

odf,

I am following along with the suggestions about Antonia and her rig. I think it is a good idea to have a version with about the current level of complexity, and then optional add ins for extra-extra realistic joints as suggested, like a super detailing kit. I don't consider myself particularly knowledgeable about making clothing to fit a figure, so I won't try to influence you on 'what's best for clothing makers' point of view, since I'm not qualified to do so. but just my personal preference, for what it's worth. 

Cheers

Ian