https://www.titleist.com/teamtitleist/team-titleist/f/golf-balls/19382/testing-of-red-number-titleist-golf-balls Hi, I am Dr. B ( Bruno ) and have just finished testing a sleeve of Titleist golf balls sent to me by Titleist Team..They have red numbers. I tested the balls against the Titleist Pro Vi 1x and the Titleist Velocity. Compared to the Titleist Velocityen-USTelligent Community 10