Retro week on the PBA Tour

This is the week the best bowlers in the world get to prove that the lane man really is king. They'll all be using identical polyester balls in the PBA Mark Roth Plastic Ball Championship and striking like crazy — at least based on the last couple of years of Plastic Ball Championships. It makes for a nice contrast to the U.S. Open, where balls aren't restricted but area on the lane is with the flat U...