> Quote - I've found an issue with my method of making JCM, I haven't take the "vertex weight map" into account.  I noticed that in the CR2 file, there is a line "calcWeights" for the twist, joint, and smoothScale.  What's that?  How Poser calculate the weights?

Poser calculates the weights using spherical (or capsule-shaped, in P8+) falloff zones.  It doesn't use vertex weight mapping like many other 3D applications.  The interaction of an inner sphere and an outer sphere (more are possible with P8+) determines how much influence a vertex receives from the joint.

If you load a figure, select a body part, and open the Joint Editor in Poser, you can observe or adjust Poser's joints.  In the attached image, the falloff zones are shown as wireframe outlines.

The JCM's are morphs which adjust or compensate for the deformation applied by Poser's joints.

The .cr2 listings for twist and joint contain the settings for the falloff spheres and bend angles or twist deformers of the joint.

There's probably no need to be concerned with any of this when making JCM's, unless you want to adjust Antonia's joint setup.

(Nudity for naked wiremesh.)

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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.