I received a sleeve of Titleist "test" balls in the mail last week. I was able to put them in play last night. WOW! The first drive was dead straight down the fairway and lonnnnng. I hit my 9 iron 3 feet from the stick and it dropped and stopped. After I proceeded to make the putt, my playing partners joked and said they wanted to get these "test" balls. I went on to play the remainder of the nine holes hitting it solid and finishing with another birdie and only 1 bogey for a solid 1 under nine holes. They are the REAL DEAL. I will buy them immediately when vailable. Thanks Titleist for the chance to try these out.