Whisker Biscuit kept all the features that made it the most-popular arrow rest in the world and made the changes that bowhunters asked for. They made it tougher, lighter and more compact. The aluminum-encased Dead Shot Biscuit is 300% stronger than previous models. It has lazer-engraved reference marks for windage adjustment. Custom rubber boots for silent arrow loading. The rest is unaffected by cold weather. The Dead Shot only causes a loss of approximately one foot per second speed drop. Universal right- and left-hand.