Some more JCM test renders, this time on the standard (high-poly) mesh. As you can see, particularly on the lower right, there are still some unsightly wrinkles in certain poses, but overall I am now pretty pleased with the results. I've done the thighs, shins, shoulders and forearms so far, and I will try to upload a cr2 with the current state of the JCMs either later today or tomorrow.
-- I'm not mad at you, just Westphalian.