Complementing the M3 driver and its unrivaled personalization is the M4 driver, which differentiates its design by putting an emphasis on unparalleled forgiveness with straight distance. The M4 driver not only utilizes TaylorMade’s most groundbreaking ‘18 technologies (Twist Face & Hammerhead), it also incorporates Geocoustic™ engineering –combining geometry and acoustical engineering to unlock more forgiveness and best-in-class sound. Having found success with both the M3 & M4 drivers this year, Johnson played the 10.5° M4 from the middle of the 2018 season on.