Yes, it is more than "a little" confusing. [And thank you for the link. I watched it and there is a lot of good information in it. I catch the sense of what they're doing, but, once again, I wonder...why no sound?]

Shortly after I posted my last, I went back to work on Beast. On a different leg this time, the left. After many failures, at last it worked. [Select the hip, IK click on the toe]. You can see the IK Target in front of the left Big Toe. I am still trying to make it happen on the other leg. I have been able to make IK Chains from 'The BOSS Bone' in the center to the nose and to the tail. I've been able to make chains from the right hip to the knee, and from the hip to either of the outer toes...but not to the center toe...and the outer toes are children of the center toe.

I think I've had enough fun for one night. Time to 'save' and go to bed.