/teamtitleist/sea/b/blog/posts/new-2013-pro-v1-and-pro-v1x-further-validated-on-world-39-s-major-tours Tour validation continues for the New 2013 Titleist Pro V1 and Pro V1x , as Titleist golf balls were relied on by more than 300 players on the three professional tours competing worldwide this weekend. At the AT&T National Pro-Am at Pebble Beachen-USTelligent Community 10