I have a question about teaching completely new to archery kids. These kids are 9 to 12 years old, and I haven't had the opportunity before last night to teach kids that young who have never shot before. Anyway two girls and one boy, and they all had the same initial problem. When they began to pull the arrow back nearly to anchor they would start making a fist, knocking the arrow off of the rest. Is their a technique or skill exercise that you may know that I can use to teach them to keep their last knuckles straight throughout the shot? Any advice is appreciated, thanks!