 Due to similar ball roll and revolutions to the cranker style, it is sometimes considered a variation of cranking.As the bowler does not use the opposite hand to support the ball (as in the two-handed approach), the wrist is often severely cupped and/or the ball is balanced on the forearm and delivered using a bent elbow throughout the shot.Another variation of this delivery is to palm the ball forcing the thumb to the side of the ball while forcing the elbow to lock so as to keep the arm straight and generate a back-swing.