I read an article written by Randy Ulmer, world champion shooter, about improving accuracy. It was in a Field & Stream magazine. Baically, it sounds like what he described. You try to center your pin on the bullseye, but the pin floats around as you try to center the pin on it. He wrote that you need to work on form and learn how to hold your bow perfectly still. Once you master holding your bow still, then you apply aiming. The pin will naturally go to the center of the target. Look up his article. It will improve your shooting skills.