I used to put the corner of the fletching in my mouth, that was a great one, but you still need others in conjuction. Now, I put my release shaft in a hollow between my gums and chin, and tip of my nose on the string. Tip of your nose on the string is fabulous for keeping from flying left or right. If your looking for one thing as a good anchor point, use the tip of your nose!

Good Luck!