So - the Fed-Ex Cup is over, and Billy Horschel wins it with a ProV1x.
He has used the same divot tool for 10 years, and the same quarter for marking his ball for almost as long. I would guess that qualifies him as a bit superstitious. So after winning over $11 million on Sunday with his ProV1x, I very much doubt if he will be changing his ball choice for the rest of his career !
Darius