Long ago when hair was large and men wore spandex (that would be the 80s, for you youngsters), Ping founder Karsten Solheim applied his engineering background to club design and quickly realized that square-cut grooves could put more spin on the ball while still abiding by the USGA rules. Depending on who you ask this was either the greatest thing since sliced bread or an unmitigated disaster. The USGA was in the latter camp and they promptly banned the square grooves, effective in 2010 (for those not following the anchored putter kerfuffle, “promptly” has a slightly different meaning when applied to the USGA). This led to 2010 being declared “the year of the wedge”, competitors everywhere had to replace their non-conforming wedges. All was not lost, however, as manufacturers milled, spun, and laser-cut the faces of their wedges to try to return the spin of the old square grooves.
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