When it comes to flat lane patterns such as the flat U.S. Open and Bear patterns, Norm Duke indisputably is one of the best: his record that includes two U.S. Open wins among seven major titles shows it. So it should come as no surprise that the Hall of Famer on Tuesday earned the top seed for the PBA Bear Open stepladder finals at FireLake Bowling Center. The other TV finalists for the second event of the Oklahoma’s Grand Casino Resort & Hotel PBA Summer Swing are Bill...