"I know this is a convoluted thing that nobody likes, but that's the answer to it."

Steve Elling talks to Mike Davis about where old PING-grooved clubs can and can't be played and even Davis admits it's a mess.

"It all depends on where you're playing," said Mike Davis, the USGA's senior director of rules and competitions. "So, if you are within the USGA jurisdiction and playing in the U.S. or Mexico, that [Ping Eye 2] club, even if the grooves condition has been adopted, can be used.

"Even if the British Open is having a qualifier in the United States, that club can be used, and vice-versa. If we're having a U.S. Open qualifier in London, in that instance, we'd be under R&A rules, which would not allow it [the old Pings].

"I know this is a convoluted thing that nobody likes, but that's the answer to it."