It is the typically interesting opinion of John Sikura that "a stallion's genetic switch is either on or off." The quality and quantity of his books may affect his profile, but his potency (or otherwise) will be operative the day he covers his first mare. Sure enough, six Grade I winners to date for Not This Time all belong to his first two books, conceived at just $15,000. Whatever he might yet achieve with his upgraded mares, paying $135,000 last year and now $150,000, he did not need their help...