Take a look at the tuning bell curve. For any given bow, arrow, archer combination, there will be a "best" arrow that will give the best flight characteristics. To each side of the "best" are arrow combinations that most folks would consider adequate arrow flight quickly dropping off to unacceptable arrow flight.

The farther away from the best combination, the more critical a good release and form become. They will shoot great if "I do everything right". The key to tuning is to find that arrow in the middle ground. So...How do we do that? Let's take a look at the shot....