For the third straight day, Mickelson holed a chip shot for birdie, and while he hit only 12 greens, the guy with his own short-game DVD was 6-for-6 in scrambling.
"It's been a good three days," Mickelson said. "It's been a good start. I'm looking forward to tomorrow's round."
He'll start the final round six strokes behind leader Jason Dufner. But unlike in the past, Sunday's final round will be played on Pete Dye's Stadium Course. And while it is playing as the toughest of the three courses, it's certainly not as punishing as a typical Dye design. Still, there is trouble lurking, especially on the par-5 16th (20-foot deep bunker on the left side of the green) and the par-3 17th (yup, another island green).
"In the past you can get away with some wayward shots and still shoot in the 60s," Mickelson said. "But if you come out here and play a little sloppy, you're going to shoot in the mid to high 70s."
Mickelson will have to play another flawless round Sunday if he hopes to win for the first time since the 2013 Open Championship. He admitted after Friday's round that he's probably still "a week away" from feeling completely comfortable with the swing changes he made with his new instructor, Andrew Getson.
"It feels fairly easy," Mickelson said of the changes. "It doesn't feel like I'm fighting anything."