The mouth opening is now fixed in the github version. I've removed the ugly artifact and added a control parameter MouthOpen in the head actor.

@lesbentley: I have three versions of most expression morphs right now. You are right, it's probably best to just slave the symmetric version to both the left and right one in each of those cases and remove its deltas. The EyesClosed morph doesn't have left and right versions as yet because I made it before I could split morphs and haven't gotten around to adding them. I think there will simply be UprLidDn, UprLidDnLeft and UprLidDnRight instead of EyesClosed. Those names are a bit more cryptic at first sight, but they fit in with the naming scheme for the other lid and lip morphs.

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