Motiv Jackal Bowling Ball (15lbs) The Motiv Jackal is a power pearl with the unique ability to make an aggressive move in the oil, yet retain energy to continue through the pins with deadly force Because the Jackal is strong in the mid-lane and retains energy so well for proper continuation, it is a great piece for a wide variety of bowlers Obviously, low to moderate rev league bowlers will crush a house-shot with it and tournament bowlers will appreciate the Jackal because it is strong in heavy oil, but doesn't quit