USGA proposes limited MOI in drivers
The USGA sent a memo, obtained by Golf World, to manufacturers on Thursday, announcing a proposal to limit moment of inertia in drivers. If adopted, the proposal -- which covers driving clubs only -- will go into effect March 1, 2006.
In simplest terms, MOI relates to a clubhead's resistance to twisting on off-center hits. A club with a high moment of inertia can be said to be more forgiving of hits away from the center of the face. In a March 30 notice to manufacturers, the USGA noted ...
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