A hook with the ball can be done several ways. Some of it depends on the ball design and lane conditions. In most cases its making sure the ball comes off the thumb first then lift with the fingers. The hand position should be at about the 4 oclock position.
Chat with our AI personalities
In general, throwing a backup ball may not provide better results than throwing it in the normal manner. The best solution is to talk with your a local proshop operator or instructor to observe your style of Bowling to develop a game plan to either change your throwing method or to leverage the existing style.