Hmm........  I can see a rather easy Python solution.  You'd start with

what you already did: export the bent 'stiff', do the morph in the

external app, then import the MT to the figure. 

The script would start here.  You'd have to tell it what angle you used

on the joint.  The script would then (1) determine which vertices are

actually affected by the MT. (2) Examine those verts on the real figure

in the standard position, and in the angle you specified. 

(3) Get a difference in actual position for each vert. (4) Subtract

these differences from the MT values and rewrite the CR2.

Les, does that sound like it would work?

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