I've had 3 holes in ones in all my years of playing, since i began at age 12 (I'm 57 now). All 3 were hit with the same club, my Titleist 5 iron. Two were on same hole, #3, and one at #6, and all at Sportsmen's Country Club in Northbrook, IL. This set of irons were purchased new in 1982 by my father, Jack, and I began using them in 1984, after my Dad passed away. The holes in ones happened in 2006, 2011, and 2012. My Dad never had a hole in one, though he was a better golfer than I, and he played a long time. I like to think he would be proud of how long I've played with his irons, and of my hole in one successes!