Quote -
One morph should not use another morph, anyway. Morphs need to be independent.

If I remember right, the intention was to open the mouth in order to see the teeth and tongue. For that purpose, it doesn't matter if the head shifts by an infinitesimal amount.

Yeah, I guess you're right about her wanting to see the teeth, but I was under the impression she wanted an open mouth morph to build other morphs off of also.

But what's wrong with building morphs off others?
I mean for example, I'm not going to do hours of morphing to get one phoneme, then repeat the whole process to get another similar phoneme - I'm going to start with one base open mouth morph and build all of them from that one.