Corrective shape for pose , fix shape for shot , do facial rigging based blend shape ,add in between for blend shape ,symmetry for target ..etc.
Do you want to combine these work in a dynamic and flexible UI ? 'HZBS' is the answer.
'HZBS' is a powerful blend shape management tool for maya ,it's on the way and meet you soon .
welcome to visit web page for more information : http://www.ani-q.com/hzbs.html