Then, he talked about what, exactly is different between the two drivers. Interestingly, they’re both the same loft…

“They’re both 8.5 degrees. But the angle of attack, spin rate [are different].”

The AoA (angle of attack, as it’s known in the biz) and spin rate differ because the because the two drivers are different lengths, Phil explains…

“I launch [the bomb driver] at 16, 17. You cannot control that. That is such a high launch you can’t control that 14 times a round. So I put one in that’s a little shorter, my angle of attack is down, my launch is closer to 11 1/2, 12, much easier to control. And I should have a reasonable chance of hitting some fairways with the rest of the year with that club.”

Same swing, same loft, different lengths, different results. Bombs and cute cuts. It’s the wonder of physics, let’s see how it works for Phil at the U.S. Open.

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