O'Brien: It just sort of went away, and I think what happened at the  Memorial had a lot to do with it. We have a committee that decides who is going to be the tournament's annual honoree. Jack had never gotten involved in choosing the honoree—that's a sacred cow—but he stood up and said, "I'd like it to be Arnold." He said that although the honoree is not supposed to still be active, he thought Arnold should get his due while he was still around to enjoy it.
Giffin: It wasn't a case of suddenly going from an enemy to an olive branch. At worst there was coolness between them. There was always great respect for each other's ability. When something important came along, they would always consult.
O'Brien: We're both on the same side of a fight with the PGA Tour, which has robbed Jack and Arnold of a title. They won the PGA National Team Championship in 1966, but the Tour claims that at the time there was a regulation making it unofficial.
Giffin: The Tour did a book, and when it came out, Larry and I both noticed that they had reduced the victory totals.
O'Brien: We're up to 99 [career pro wins], and it should be 100. The next time Jack wins, it'll be called a historic event—his 100th—but it's not.
Giffin: I can think of a plus, though. You get a double dip. You're claiming 100 now, and they'll claim it then.
SI: Today it seems that the Palmer-Nicklaus rivalry is mainly in the area of golf-course design.
O'Brien: In our exhibitions we focus a lot on overseas, where they can lead to golf-course design work. But Europe has gone flat. Our big boom now is Asia.
Giffin: They have different outlooks about it. Arnold prides himself on designing a golf course that can be played by all levels of golfers. Jack's golf courses are more severe.
O'Brien: All I know is that Jack designs golf courses to the client's pleasure.