Elkfreak, also, after the pins are adjusted. The wire in the center is used to align your pins. This adjustment is made with the silver screw on the back of the pin. This will move the pin in or out so that you will be perfectly aligned for all of your yardages. Make sure that you don't go out too far as the wire will bend and give you a curvature of the wire. Making your pins have a curving effect. Good luck.