So you want to be a Content Creator - The Facial Expression Workflow 

In this video I demonstrate how to use the Facial Profile Editor with the Zbrush pipeline, and discuss some of the best practices when editing expressions. The commentary I provide is based on my experiences with this pipeline. If you find a better way of doing it, please do it that way -- always defer to better results, rather than anyone's opinion of what you should do.
Note: At around 38:40 I say that 'the teeth are too high'. I meant to say 'the teeth are too low'.