First Jason Gore left Nike (because he hated their ball). Now he seems to be with Cobra and playing a Titleist ball, though I'm not sure that's been formally done up in a contract.
Today I read that Chris Couch was "caught" playing a Titleist ball in competition, most recently at the Travelers. He's one of the longest tenured Nike players, and now he's left. He's playing a mish-mash of clubs, but a Titleist ball.
I guess what Dave had to say in
his review of the Nike ONE+ was pretty accurate: "Nike has a pretty good ball on their hands but still have a bit to go until I consider them great."