With the extended timeframe and more lanes available for World Series of Bowling VII at the National Bowling Stadium in Reno instead of South Point in Las Vegas, the PBA opened this year's World Series to non-members.   An announcement Wednesday night illustrated one thing bowling fans gained from the move: Adam Barta, one of the top non-PBA members in the country (remember there is no such thing as an amateur in bowling), posted on Facebook that he had entered the World Series: "Well...