From there, Scheffler coasted to the win at Royal Portrush Golf Club in Northern Ireland. Aside from a double bogey on the par-4 eighth, Scheffler carded four birdies on the front nine and finished 3-under on Sunday to capture his second major of the year.

But for gearheads and tour players alike, hot melt inside a driver head isn’t some mysterious magic—it’s a real, performance-driven tweak that can make a meaningful difference at the highest level of the game.