Kevin Na puts in some work in the short-game area.

... and here's a closer look at his Titleist AP2 irons.

Martin Flores also has the 910 prototype in the bag.

Greg Chalmers warms up on the range.

Tom Pernice practices his Vokey-wedge game.

Titleist Brand Ambassador Drew Weaver grew up just 15 minutes from Sedgefield Country Club.

Here are the Virginia Tech alum's clubs.

Now for a closer look, from the Vokey wedges...

This is Noh's last week in America until PGA Tour Q-School in December.

Nice hat!