Of course there are limits - it's just that no one really knows what those limits are.  But then, that has always been the way - one person creates something with certain intentions in mind and someone else looks at it a different way and discovers things the creator never thought of because that wasn't what they had been intending.  Sometimes  it leads to really good things.  For now, I mostly just want to figure out why my right and left thigh are behaving slightly different when they should be the same, and why the center crotch area of the hip buckles over in an odd manner rather than moving in line with the rest of the mesh - I think I've exhausted examining the mesh for reasons and have concluded that the problem is in the joints and most likely I think in the mat spheres but playing with the joint editor is not giving me the results I want because it seems I am needing vary small adjustments which I'm finding hard to make because there seems to be some sort of rounding going on so that the values I use are not always the values I end up with so I though that directly manipulating the CR2 might be the answer.

I always start with this sort of thing working visually, you know, grab the angle arms with the mouse and move them or "turn" a dial, then when I'm close I switch to typing in the values directly but I'm feeling like I need either a new inspiration or a more preceise tool for adjusting things - the CR2 seems the most preceise tool available.