Rob is right but I would like to add something.

If an arrow is out in front of your hand that far,then the arrow isn't as forgiving as if the point of the arrow was directly above your hand.to prove this lay a pencil on top of your hand and pretend you have your bow in your hand.Now twist the hand and see where the point is.If the point is above your hand,it doesn't move as much.If way out in front,the point moves a lot.This is the direction the arrow is pointed from the start.


My point is that an arrow cut off to the right length is more forgiving than 1 way too long or 1 way to short.This is 1 of the main reasons we don't use overdraws anymore.