It seems that everyone is arguing about two common techniques as though they are the same. There are two common techniques for catchers, the first is the rocker technique. This requires more arm strength but is very short and quick in the delivery. The catcher receives the ball as they are shifting weight to their rear foot. With a short step of their left foot toward second they release complete the throw. This may be the Pirate technique being described because in this method the arm will go back farther behind the head. The second technique is more common and involves the catcher stepping with the left foot where the right foot was and then forward with the right. This is done as the ball arrives) In this method you take the ball and glove to your ear and as you step forward the glove and ball stay in place, placing them behind your head for the throw. If you try to go back with the ball while you are going forward you will end up going back too far and will slow the process. The second method is where you see quick releases and rapid throws to second and does not require the rocket arm.