MY BAG: Billy Horschel

"The club that works the best and makes the most money is my putter. I have a special neck on it that's a little more offset, which allows me to get my hands a little more ahead."

1. DRIVER

Ping G25 (8.5°; actual loft 9.6°)

ping.com

Shaft: Mitsubishi Rayon Fubuki 63

mitsubishirayongolf.com

2. FAIRWAY METALS

Ping G25 (15° and 18°)

Shaft: Oban Kiyoshi Black 75

obanshafts.com

3. IRONS

Ping S55 (3, 5-PW)

Shaft: Ping ZZ65 with Cushin

4. WEDGES

Ping Tour with Gorge grooves (50°; 56°, bent to 55°; 60°, bent to 61°)

Shafts: True Temper Dynamic Gold

truetemper.com

5. PUTTER

Ping Redwood Piper S, 34", 5.5° loft

6. BALL

Titleist Pro V1x

titleist.com

GRIPS

Golf Pride V55

golfpride.com

TECH TALK

Supreme Adjustability

Callaway Big Bertha Alpha driver

The newest Bertha lays claim to being the most customizable driver on the market. The head features a first-of-its-kind removable carbon tube, dubbed Gravity Core, that has heavy tungsten on one end and light nylon on the other. Position the tungsten end near the sole for a low-spin driver; place the nylon end near the sole to increase backspin by as much as 600 rpm. In addition the adjustable hosel allows for loft variations (2° up to 1° down), while removable weights in the heel and toe provide shot-shape tuning (draw or neutral). Phil Mickelson, Patrick Reed, Stuart Appleby and Nicolas Colsaerts are among the Tour players using the Alpha driver. $500

PHOTO

KOHJIRO KINNO FOR SPORTS ILLUSTRATED (BAG, BALL)

PHOTO

SAM GREENWOOD/GETTY IMAGES (HORSCHEL)

PHOTO

MICHAEL CHINI (BIG BERTHA)

The club's vertical center of gravity is determined by the positioning of a removable carbon tube called Gravity Core.