Tour seeding of Titleist’s new 913 drivers began Monday at AT&T National and Team Titleist arrived early on Tuesday to find a flood of buzzing media members, spectators and players, all eager to learn more about the new prototype clubs.

From the moment they arrived on site at Congressional Country Club, the team has been hard at work, outfitting Titleist Brand Ambassadors with new prototype 913D2 and 913D3 drivers. Experts from Titleist's Club R&D, Club Development and Tour Promotion departments are all on hand to dial in players' club specifications, collect data and solicit feedback - the essential ingredients in Titleist's performance validation process.

It's an exciting time for everyone involved, a final step that must be undertaken successfully before any Titleist product can go to market.

Take a look at Team Titleist's images from Tuesday's testing sessions in the slideshow below, and stay tuned for more pics, video and updates from Congressional.