The life of a lefty on the PBA Tour mostly is a feast or famine existence, and that’s pretty much how it always has been and likely always will be, unless and until someone invents an oil-less lane that doesn’t wear, making both sides play the same. Short of that oil-less lane, you have one small group of players and one large group of players competing on what inarguably are different conditions — even when oiled the same, topographical and wear differences make the two...