GolfWell Podcast Decoding Shot Shaping & Iron Size: Dr Sasho MacKenzie breaks down new research
Sep 2, 2024
Join Dr. Sasho MacKenzie, a leading biomechanist and co-founder of STAC, as he dives into the science of shot shaping and iron size. Discover why smaller irons aren't always superior for shot control. Learn how club kinetics and ground interaction can transform your wedge play. MacKenzie shares mind-bending analogies, like car doors affecting swing speed, and offers tips to optimize your stance for maximum speed. He also teases his groundbreaking research on ground reaction forces, pushing the boundaries of golf performance.
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Iron Size Doesn't Improve Workability
- Smaller-headed irons do not offer more shot workability than larger-headed irons.
- Different irons shift ball flight patterns but allow similar curvature for fades and draws.
Out-of-Plane Force Aids Draws
- Closing the clubface involves applying out-of-plane moments with the hands relative to the club's center of mass.
- When hitting draws, players increase these moments to facilitate face closing.
Shaft Deflection Influences Face Closing
- Larger-headed irons have a higher moment of inertia and shaft deflection affects how hard it is to close the face.
- Shaft bending, not just mass offset, influences the clubface closing difficulty.