pitklad, I am sorry to say that I don't know what I mean! I think that natural expressions move whole areas of the face but sometimes you want to have the expression split vertically so people can look sad or scared when they are smiling or hopeful in the eyes when they are frowning... to show mixed emotions you know. In my own expression work for Posette I tried to have some asymetry to the whole face expression morphs as well a asymetry morphs to tweek the expression. The main thing though is to be subtle... the P5 figures were capable of good expression but the expression morphs were very extreme and distorting... had to keep below 0.2 on the dial. The best way I have found to do expressions is to strip all the sculpting morphs of a character and then manipulate the face using the morph putty tool to run the expression channels.