Titleist Brand Ambassador D.J. Trahan puts some work in on the Waialae driving range. Trahan finished 2010 strong, making nine of his last 10 cuts.

Scotty Cameron has been hard at work this week at Waialae Country Club. Here he chats with Titleist Brand Ambassador Matt Jones.

Titleist Brand Ambassador Joe Affrunti is making his first start this week as a PGA Tour rookie. Affrunti earned his card by finishing 22nd on last year's Nationwide Tour money list.

Joe also carries Titleist AP2 irons with True Temper Dynamic Gold shafts...

Here's a close-up of Joe's Scotty Cameron Newport Squareback Select prototype putter.

Titleist Brand Ambassador Zach Johnson signs some autographs for his Hawaiian fans.

Pro V1 loyalist Charlie Wi hits out of a bunker during Monday's practice round.

On the putting green, Titleist Brand Ambassador Jeff Klauk rolls in his Pro V1 from 5 feet. Aloha!