 Drummond's 1996 season, which proved to be his most successful on the European Tour, was the subject of the book "Four Iron in the Soul", written by "The Guardian's" golf correspondent, Lawrence Donegan, who caddied for him that year.According to Donegan, Drummond was the first player on the tour to employ the services of sports psychologist Jos Vanstiphout.Donegan had first met Drummond while researching an article on journeymen professionals, and writes in his book that this is "a description that might have been invented for him", noting that "I don't mean that derisively".