Just a quick word...a lesson or two from someone who knows well lesson the painful moments of learning a thumb ring. The other point is that the arrow now has to sit on the OPPOSITE side of the bow than you will be used to. So, for a right handed shooter, the arrow will be on the right side of the bow, and the arrow will land quite a bit to the right of the target the first time you shoot. There are several ways to compensate. First, place the arrow anchor point right below your right eye and line up the bulls eye with the arrow. Second, you may need to weaken the spine a bit by considering a heavier head. All good reasons to look at bamboo arrows! That's why I switched to them.