Yeah usually they will take off like a screw ball. If they all do that though, you have a tuning issue. Knock high/low they will screwball. Knock right or left, you will see the vanes slingshot sideways and straighten back up like a lawn dart! You don't want that, even a little causes a huge loss in Kinetic energy.Thanks, now I won't spaz out when one of the arrows decides to do it's own thing when I shoot it.