TaylorMade Phase1 irons

“For someone who was able to pick up on a noticeable difference in launch and spin after hitting just one ball with the initial prototype of the Phase1 — during his first official testing session with TaylorMade at the end of 2017 — Woods doesn't settle on "close enough" when it comes to his gear.”

“"The Phase1 was more of the challenge because it was trying to go from Nike to TaylorMade," Woods told Golf.com .”