By Neil McLeman Rory McIlroy wants to be “boring” and not go bust in his opening round at the Masters today. The world No.2 went for a golf lesson in Las Vegas with swing guru Butch Harmon last month but will not be gambling early in his latest bid to win a Major. The Ulsterman has failed to break par in the opening round of each of his last five Augusta appearances with an average score of 73.8. He has missed the cut two of the past three years. The start here is so important with the champion sitting in the top 10 after the first round in each of the last 18 years except when Tiger Woods won…