Heading into this week's Zurich Classic in New Orleans, Parker McLachlin was not happy with his driving. Statistically speaking, he had no reason to be, ranking 168th in average distance (272 yards) and 185th in accuracy (48%).Although he had been making some swing changes—and both his caddie and his coach felt he was improving—McLachlin was still battling a right-side miss. For the year, 25% of McLachlin's drives have found the right rough.This week he made an equipment adjustment. After visiting the Titleist van, McLachlin had the Aldila Voodoo VS7 shafts removed from his driver [Titleist 909D2 (10.5°)] and 3-wood [Titleist 909F2 (15.5°)] and replaced them with the X stiff Mitsubishi Diamona White Board. The driver shaft weighs 63 grams; the 3-wood shaft is 73 grams.For at least one day, the fitting change worked. On Thursday, McLachlin's average drive was 289 yards, and he hit 57% of the fairways."My experience last week and the beginning of this week in finding a new driver leads me back to the importance of club fitting," McLachlin wrote in the Honolulu Advertiser. "Fortunately for me, Titleist has a great Tour trailer, so we've got club fitting at our fingertips. But even for the weekend warriors out there, getting fitted for clubs, and drivers especially, is extremely important."