Phil Mickelson is one of the greatest golfers of all time. However, his career has sparked a lot of controversy, especially against the USGA, golf’s governing body. He hasn’t had a good relationship with the USGA since the start of his career. Additionally, the US Open is the only major championship he hasn’t won in his career.

In 2010, at the Farmers Insurance Open, a player accused Mickelson of cheating. He believed that Phil was using chocks that are not allowed under a legal technicality. “It’s cheating, and I’m appalled that Phil put it on the line,” said Scott McCarron.


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Which shims did Phil Mickelson use?

Phil Mickelson was one of the few golfers to use the square-grooved Ping-Eye 2 wedges. However, the USGA banned these grooves on the PGA Tour. Also, most golfers used v-grooves. Meanwhile, challenging this decision, Ping filed a lawsuit against the USGA. They settled that lawsuit in 1990. Therefore, any Ping-Eye 2 wedge made before April 1, 1990 remained legal.

Therefore, Phil Mickelson used the wedges that Ping made before April 1, 1990. So technically he wasn’t using any illegal clubs. However, Scott’s comments have spread like wildfire, as cheating at golf is probably the worst accusation.


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Meanwhile, Phil refused to respond to McCarron. Instead, he criticized the new USGA rules. “It’s a terrible rule. To change something that has some sort of loophole is crazy,” Michaelson said. “But it’s not for me or any other player to interpret what the problem is or the spirit of the rule. And I think myself or any other player is allowed to play in these clubs because they are approved. End of the story,” concludes Phil.

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Additionally, Scott McCarron believes the USGA approved the wedges through a lawsuit. He thinks it’s not in the spirit of the rules. Therefore, he accused the left-handed golfer of cheating.


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After all the drama, Phil stopped using those wedges, saying the whole groove had turned into a debacle. Moreover, he did not hesitate to criticize the USGA for not having corrected this shortcoming.

What is the difference between square grooves and v-grooves?

Square grooves, or U-grooves, give players a slight advantage as they help generate more spin. Thus, the bullet frequently ended up near the location of the pin. However, with v-grooves, the amount of spin on the ball is less. Therefore, the USGA believed that golfers needed more skill to use these grooves than square grooves. To this day, square grooves remain illegal, and no golf equipment company manufactures them anymore.


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So what are your opinions? Did Phil Mickelson cheat using square slots? Let us know in the comments section below.

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