* Sort your arrows for perfect consistency of spine (dynamic stiffnesss).

* Precisely index arrow knocks to the stiffest portion of the arrow shaft for the tightest groups.

* Check the concentricity of your broadheads to an amazing +/-.0005" for an awesome hunting accuracy.

* Measure the straightness of arrows from the tip to tip.

* Monitor the degradation of arrow spine over the course of the season to catch problems before they show up on your score card.

* Provide your customers with a valuable service, the ultimate in arrow accuracy.