Ybot---I the issues in this thread are arising from the fact that the part I'ved bolded in your post isn't a matter of general agreement. I think some people are using CofM (or in the cases we're really interested in, CofGr) interchangeably with CofB, but I suspect not everyone is. I get the impression that the notion of CofB is being taken as not a dynamical concept of standard mechanics, which can be calculated---in principle, anyway!---if you know the shape and density of a physical object. It's rather some component of the MAists `body awareness', such that you can maintain your balance by controlling this location, and that you'll be informed of whatever adjustments to your body configuration are necessary via your sense of this location. It's something you sense about your own body, and is not in a simple one-to-one relation with the CoM/CoG.
I'm not sure this is so, but given the fact that your CoM changes as your body configuration changes---your CoG is way different when you're standing with one leg raised to waist height in front of you than it is when you're standing on both legs---the only way of meaningfully defining a notion of a constant CoB is if it's the sensation of a `control point' not necessarily the same as your CoM/CoG.
If that's the case, then `center of balance' doesn't necessarily correspond to a single location at all, because as various people on the thread have already noted about themselves, it's possible to have a kind of generalized sensation of balance and how to control it, rather than a local one. I just think people can and will differ widely on such issues (after all, as plenty of people have noted in print, not everyone responds to pressure-point strikes the same way; some people seem to have no nerves at certain locations where according to conventional wisdom you should pass our or whatever if you get hit there).