Rickie gives his new Prototype MB's a full inspection.

The Titleist Tour Van is a bit more crowded than usual this week, thanks to all the boxes of new Prototype Titleist AP1, AP2, MB and CB irons (712 series).

Looks like Titleist Brand Ambassador Graham DeLaet has a package (new Prototype MB and CB irons).

Titleist Brand Ambassador Matt Jones's new Prototype MB irons were re-gripped and delivered to his locker at Arnonimink.

Out on the range, Titleist Brand Ambassador Jimmy Walker gives his new Prototype MB irons a first test run.

Here's a close-up of Jimmy's new Prototype MB 5-iron.

Titleist Brand Ambassador Kevin Na gives his new Prototype AP2 irons a closer look.

The new Prototype AP2 irons are already in the bag of Titleist Brand Ambassador Scott Stallings.

Scott played 36 holes with his new irons Sunday, and 18 more in Monday's pro-am.

"The new ones are in the bag," Scott said, " no question about it." (For more reaction from Scott, check out today's Team Titleist Tour Blog post.)