True 5:1 concentration. 1  Double the strength of other brands. 2  Minimal or no fillers and binders. 3  No pharmaceuticals, sugar, or dyes. 4  Comprehensive lab testing (e.g., heavy metals,etc.) 5  Made in a cGMP certified facility. 6  Unbeatable value. 7  Safely used in the USA since 1995.
Arrow Length - refers to the length of the arrow shaft. Arrow size - refers to the spine (stiffness) of the arrow. The shaft size is always referring to the diameter of the shaft, the wall thickness of the shaft and the distance that the arrow shaft will flex before it bends or breaks.
By comparing the arrow drop at two distances, you can get a fairly accurate measurement of a bowâs speed in FPS. 1. Shoot a group of arrows from 20 yards using the pin you normally would. Concentrate on good form and pin placement. The more accurate you are, the more accurate your results will be.