Quote - Oh the shorts are not forgotten. I have been trying to work out why it is proving so difficult for me to create useable JCMs for them.  I looked at the shorts you made based on Antonia's topology, which seem to work fine with one JCM. 
I hacked Antonia 122 CR2 to make the hip2 and thigh morphs independant from the thigh bends. If I apply the spread morph with Antonia joints zeroed there is some very sharp deformation of Antonia's mesh around the backside at spread -60. These obviously work well for Antonia, but I think the  approximation which is happening with 'morphing clothes' trying to replicate  the sharp deformation of Antonias mesh for 'spread', into the quite different topology of the my shorts is resulting in a morph which doesn't really do what is required of it.

My experiments were interupted with a three day ITIL course and exam, so I had to put 3D out of my mind for a few days. ( my old brain doesn't multitask as well as it used too ).

In the Brad thread, phantom3d has commented that the design of the mesh is much more important for good bending than any joint settings.  My shorts, being derived from Antonia's mesh, follow the curves of her mesh in the stretch and crunch areas for the joints.  I think you're right about the topology.  Clothes for Antonia may require either a mesh with a topology which flows like hers, or more elaborate JCM setups.  :unsure:  I'm increasingly amazed that those I made worked.  :lol:  I cheated.  :lol:

I'm eager to see yours when they're ready!  :woot:

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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.