Due to the USGA's rollback on groove dimension (in clubs with 25 degrees loft or more), tour pros are required to play wedge grooves that are narrower, shallower and have more rounded edges than in previous years. Is there a marked performance difference between "2010 condition of competition" (2010 C-C) wedge grooves and pre-2010 grooves? Hot Stix Golf, our exclusive research partner, tested both grooves and found dramatic results.
The Test
Five skilled amateurs with scratch handicaps were given brand new wedges with 56° of loft with "2010 condition of competition" grooves (referred to as "2010 C-C") and "pre-2010" grooves. (Recreational players can use pre-2010 grooves until 2024, but manufacturers must stop producing the clubs by the end of this year.)
The test was conducted in San Francisco on a 58° day. Hitting only Titleist ProV1 golf balls, testers hit full shots to a practice green from the fairway and from two-inch rough.
Testers struck five shots in each of the four scenarios:
1) "2010 C-C" wedge from the fairway
2) "Pre-2010" wedge from the fairway
3) "2010 C-C" wedge from two-inch rough
4) "Pre-2010" wedge from two-inch rough
Measurements on all shots were taken using a Trackman launch monitor. Backspin, launch angle, shot apex, descent angle and roll distance were all recorded.
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