The RED ZONE is the section of the arrow shaft engineered to contain Dynamic Spine and make a broadhead shoot more consistently. The section of the Maxima RED arrow shaft that manages arrow flex in flight which is called dynamic spine. The RED ZONE is the best section of the arrow shaft to contain Dynamic Spine and make broadheads shoot best. A broadhead moves the center of mass forward on an arrow which increases the flex of the arrow when launched from the bow. Both expandable and fixed blade broadheads exaggerate the effect of this increased flexing because the shape of the broadhead act like wings on the front of the arrow. The stiffer front end of the arrow shaft repositions arrow flex to the RED ZONE and reduces oscillation on the front end to make broadheads shoot more consistently. This results in tighter groups with broadheads and makes the Maxima RED the Ultimate Hunting Arrow. The Maxima RED manages dynamic spine so well it only takes two spine sizes to cover 40-92-pound bows. The Maxima RED has a compatible weight to the Maxima Hunter. Upgrade from the Maxima Hunter to the Maxima RED without changing bow setup to get ultimate broadhead performance. Every Maxima RED arrow is laser checked for straightness to a remarkable 1/10 000 of an inch. LAUNCHPAD Precision Nocks come standard on all Maxima RED arrows and shafts to deliver a controlled arrow release better shaft alignment and more consistent accuracy shot after shot. Maxima RED arrows come fletched with Blazer vanes. BullDog Nock Collar comes standard on all Maxima RED arrows and shafts to protect the shaft against nock end impacts. Every Maxima RED arrow is laser checked for straightness to a remarkable 1/10 000 of an inch Spine selection sorting tolerance is +/-0.0025 is a maximum measurement not an average LAUNCHPAD Precision Nock - LAUNCHPAD Precision Nocks come standard Maxima Red Arrow Shaft 350 12 Pack