A few weeks ago I recieved 2 sleeves of Titleist prototype balls to test and play and then report back to Titleist on my opinion of these golf balls. Today, 10/1/2011, I played my round using these balls and on the 17th hole at Hickory Hill in MA I shot my first hole-in-one after 51 years of playing golf. I absolutely can't believe it and I absolutely love the blue ring ball.