Your bow arm elbow should be pointing to the side, not down - around 8-9 o'clock for a right handed shooter. Another way to do this is to hold your bow arm out as if holding the bow. Now bend your elbow so that your forearm comes horizontaly across your chest. Extend the arm again. That is the proper elbow position. Do it again, but this time bend so that your hand comes up and hits you on the forehead. This is the WRONG elbow position, and will get you whacked every time. Also remember to keep a slight bend, don't lock it out, and arm guards are your friend. Good luck.