RE: correct me if im wrong!
No, the bottom of the "V" has your arrow in it. You do not want that in the corner of your mouth. You want the bottom of the "V" to be more towards your chin/jaw line.
Think of it this way. You have seen kisser buttons correct? The kisser button is typically a few inches above your nock point. The kisser is the point that should be in the corner of your mouth.
Best of Luck!