A new Prototype CB iron gets checked in the loft/lie machine inside the Titleist Tour Van.

Ryuji games 4-9 MB irons with True Temper Dynamic Gold shafts.

Another box of new Titleist prototype irons, ready for pickup in the Titleist Tour Van.

And here's another look at the new prototype Titleist AP1 and AP2 irons.

What's inside? Titleist Brand Ambassador Gary Woodland's new Prototype MB irons.

Here's what they look like in the bag.

Marni Ines of Titleist Golf Club R&D looks on during Gary's first testing session.

Woodland plays Titleist Pro V1 golf balls.

A little further down the range, Titleist Brand Ambassador Ryuji Imada tests his new Prototype CB irons.