So, I had a look at the new JCMs. Much better, but still there's some crumbling and some poke-through. Not satisfactory.

I think I'm going to try a different hierarchy in which the big toe is a child of the toes. In other words, I'll change from this:

RightInstep
    —RightBigToe1
        —RightBigToe2
    —RightToe

to this:

RightInstep
    —RightToe
        —RightBigToe1
            —RightBigToe2

That way one can move the toes as a whole and then adjust the position of the big toe relative to the others. It will still be tricky to get the joint zones right for the big toe, but we don't have conflicting zones from two sides trying to influence the same bit of geometry.

Any opinions?

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