Weight mapping: there's a PoserPython function called GetVertexWeights(). I don't know enough of the internal Poser workings, but it may be possible that the joint parameter info gets transformed to vertex weights internally.
If this is the case, it woudn't be too difficult to translate the current joint parameter system into weight mapping. Yes, including the magnet based JCMs.
A weight map generated in this way then could be tweaked to improve the bending of the figure.
Then again, I don't know that much about weight mapping. What I've written in the previous paragraphs could be total rubbish.

What I do know is that relatively few users take the time and effort to dive into the possibilities of PoserPython. When they do, however, it can lead to fascinating and valuable products (think PoserPhysics, think PhilC, think face_off, think ockham) that greatly enhance the functionality and usability of Poser.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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