you wrong!
what about this:

why on this faceware the tracking lines (tracking model) are yellow?? i think this version is really used different algorithms ??
i tried
different lighting conditions,
different frame rates, change cameras, tried different camera positions, custom expressions but can't gave good results like this tutorial :/
and my tracking model is green all of time. for what?
P.S: i'm using trial faceware + plugin for testing.