Some years later, when he discovered blue-water fly-fishing, he spent some time off the coast of Ecuador with a friend, Dr. Webster Robinson, a pioneer in catching Atlantic sailfish, Pacific sailfish and striped marlin. Billy resolved that he had to catch not only those but also the other three species of billfish never caught on fly, giving him the near ultimate slam. He needed the white, black, and blue marlin (there are two subspecies of blue marlin, the Atlantic and the Indo-Pacific blue). Billy was the first to achieve the slam, finishing it off with an Atlantic blue marlin caught in Havana, Cuba, on Aug. 21, 1979. Not only did he catch all six, but they also were all world records. While the slam was complete, Billy wanted to catch the Indo-Pacific blue, but it was not to be.