Keegan Bradley, who had committed to the Classic but last week pulled out, has three wins on the PGA Tour including the 2011 PGA Championship. He, Masters champion Adam Scott - who is not in the Greenbrier Classic Field - and Webb Simpson, who will tee off at 7:50 a.m. Thursday from the No. 10 tee at the Old White TPC, have been vocal in their support of anchored putting.
Much less vocal have been Pettersson, and 34-year-old Canadian David Hearn, who has twice finished in the top 20 at the Greenbrier Classic.
"Obviously I feel I putt better with it," said Hearn, who was tied for 18th in 2011 and tied for 12th last year at the Classic. "Anybody that does would say the same thing. It's an equipment choice, just like any other piece of equipment that is within the rules to use out here."
Then there are the veterans, who don't share the opinion of Pettersson, Hearn and others.
Greenbrier Owner Jim Justice, who has participated in the State Amateur and has played with Sam Snead, said there is a competitive advantage using the anchored putting style.
"It just stabilizes part of the swing itself," Justice said. "For crying out loud, if we could get mechanical arms, we could stick that putter in the middle of our belly and just click our arms, let it go back and forth, what's going to be next?"
Nick Faldo, the six-time major championship winner and CBS sports golf analyst, sat next to Justice on Tuesday and reiterated his approval of the PGA Tour's decision.
"I've been all for it," he said. "I can understand and see what we want you to do, really go back to the original intentions of the game. It's called a golf swing, not a golf hinge. That was the way it was intended to golf, both hands."
For this week, Pettersson, Hearn and Simpson will grab their long putters, anchor them to their bodies, and follow through with a putting stroke that Carter said helps you "keep your line."
When the Greenbrier Classic returns to the Old White TPC for the seventh time in 2016, the anchored putters will be a thing of the past and Justice said that's a good thing.
"It's a game that I believe, and I'm probably going to get in trouble with this, I believe we don't need any gimmicks," he said. "We just need the game, the time-honored game that brought us to where we are today."
Contact Assistant Sports Editor Rich Stevens at richstev...@dailymail.com or 304-348-4837.