But what if there were a golf ball that went only straight?

“That would be a miracle,” Dion Cooper, 26, of Brooklyn, said as he swatted balls last week at the Edgewater Golf Range in northern New Jersey.

Mr. Cooper was hitting his driver toward the Manhattan skyline, the balls tailing off in the familiar arc of the classic golf slice. Then he was handed the new Polara golf ball and took a healthy swat.