Beiter - Balance Point Clip
The Beiter Balance Clip is a small, but important tool. It helps to determine the balance point of the arrow and allows to easily calculate the F.O.C. (=front of center), the percentage of the balance point from the mid of the arrow.
Beiter F.O.C Calculator
With the Balance Clip not only you can determine the balance point of a single arrow, but also the difference in the balance of a series of arrows.
Simply measure every balance point on each arrow of your series (dozen) with a pencil. Align the arrows and you will see if the lines you have marked on the shaft are all at the same height!