IDENTIFY WHICH SPINE CHART TO USE. Your IBO speed rating can be found on your bow manufactuer's website. If your bow is rated over 350 fps, shift one cell to the right, it may be the next stiffer size.
DETERMINE YOUR ARROW LENGTH. Measurement should be taken from the bottom of the nock groove, to the end of the arrow. For shooting broadheads, your arrow length is often close to your measured draw length. This keeps the broadhead away from your hand during the shot. **NOTE - Minimum arrow length with LRP Terminal Collar will require at least 1" in front of your arrow rest.
FIND YOUR DRAW WEIGHT in the left column and follow straight across to the row containing your arrow length. Shift right if IBO rating is over 350 fps.
USE RECOMMENDED SPIN SIZE IDENTIFIED BY THE INFORMATION ABOVE. If you're between two sping sizes, always choose the stiffer spine.
Nocks in LRP Arrows are ONLY designed to shoot with a release aid.