In what may be an unprecedented situation, a prominent international bowling competition will be contested under basic playing rules different than those of the United States Bowling Congress. The Storm Lucky Larsen Masters in Sweden Aug. 25-Sept. 9 is part of the World Bowling Tour and will award a PBA Tour title to a PBA member who wins the tournament. But while those PBA members who live in the U.S. — like all U.S. bowlers — since Aug. 1 have had the option to use balls without...