Usually if you kick the ball out the opposition gets the ball. When you kick from inside your own 40m line and get it out past your oppositions 20m line YOU get the ball back instead.
It encourages defending teams to keep their fullback deep instead of as an extra man in the line of defense. Gives the attack an extra free man to manouvre with and more attacking options.
It encourages defending teams to keep their fullback deep instead of as an extra man in the line of defense. Gives the attack an extra free man to manouvre with and more attacking options.