Fisty: I was wrong. It's not a JCM problem. It's a rigging problem, and a fairly tricky one. There's a strip of polygons on the toecap which is between the big toe and the other toes and belongs to the instep actor. That strip is influenced by the movements of both the big toe and the other toes, so if both are bent up and the spherical falloff zones overlap the slightest bit, it "bends up" doubly.

I'll go check phantom3D's new JCMs and see if they fix that problem. If not, I'll try to fix the zone setup. Darn Poser! This would be trivial to solve with weight maps. With spherical falloff, I'm sure it can be done, but the clunky interface just kills me, and I can't run the D|S setup tools. ::swears::

Edit: I think this is a point in favor of having just one actor for the toes and using morphs for the more intricate toe movements. Or alternatively, a partially dynamic toecap prop instead of the builtin toecap, but that doesn't seem very user-friendly.

-- I'm not mad at you, just Westphalian.