I don't know of any off hand that have the berger hole at true center. TFOX brings up some good points. I believe getting the arrow as low to the shelf as possible is going to yield the most forgiving setup. This will typically place the arrow below the center of the berger hole to some extent. Bowtech has a very low berger hole compared to many bows. This is probably why they cut a trough in the center of the shelf as well.