I agree you can get away with it when it is a closed smile, but for those beautiful (in real life anyway) big exhuberant smiles, vici is definately lacking. The cheecks and top lip doesn't move right. I think when you smile it raises slightly. With have to get a mirror out and take notice of what happens with different types of smiles. Thing is, I really like the lip shape I came up with (in top pic). I don't want to mess with the shape too much other than morphing it into expressions. I love the smiles that Stephen Stahlberg does, they look so nice, a little like Cameron diaz type of smile IMO.