i' m using a kisser button in the corner of my mouth as an anchor point. i even moved that down till the vanes were almost hitting my chin.
Get rid of the kisser. Move your anchor up. Anchor the big knuckle of your index finger behind the jaw, touching the bottom of your earlobe. I know some people have a compulsive need for a kisser. If you' re one, then set your fletching to touch your lip.