Not only that, but the bow must be properly fitted to the shooter. Leaning backwards trying to reach an anchor point, sometimes even behind the ear, with a draw length that is far too long is a major and very common cause of poor shooting form. Not only does it screw up form from the get to, draw length that is too long keeps a shooter from properly using back tension.

Draw length too short isn't nearly as bad, but it does keep the shooter from properly aligning his shoulders with the target and forces an unnatural bend in the bow arm elbow. It's a rare shooter who can keep more than a reasonable amount of bend in that elbow and still shoot consistently. (I have seen people who have both, an unnatural 'L' bend in the elbow AND are anchoring on the back of their neck. Unbelievable as it may seem.[:-])

A grip that doesn't fit the hand comfortably or causes the wrist to flex unnaturally is also bad news for form. Also, being overbowed is a very common cause of form flaws.

What about clickers? Their purpose is to guarantee the shot is taken from a specific draw length and, when properly set up, will only go off when back tension pulls through the anchor. Consistent draw length and back tension are critical aspects of form. The clicker is a piece of equipment specifically made to teach good form.

I can't fathom why some people refuse to understand that equipment and form are wound up together so tightly that it's impossible to speak of one without the other. To a knowledgeable shooter, the interrelation is blatantly obvious.