Cage and lesbentley: Thanks for making me aware of the foot problems.

I had noticed the problem when bending the foot upward. As it turns out, part of it was due to an excessive amount of bulge. There's also some deformation of the ankle bones, but I think that's bearable up to about 30 degrees or so, which is as much as the foot can and - IMO - should do, anyway. Les, could you try and reduce the 'right neg' bulge to 0.05 on the foot bend and tell me if that looks reasonable for the pose you had in mind?

I also think it's kind of okay-ish to have ankle bone deformation for larger values of twist or swing, because those would be kind of unrealistic. But that distortion at the foot-instep boundary (that apparently only happens when bend, twist and swing are used all at the same time) is definitely weird and not cool. My suspicion is that I've been getting a bit too close to the actor boundary with the inclusion/exclusion angles. I'll see what I can do to fix this.

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