Abandoning Pitons for Clean-Climbing Chocks
By the early 1970s, hard-steel pitons were Chouinard Equipment's main product, and Chouinard saw that repeated hammering in and out was visibly scarring popular cracks in Yosemite. The company's 1972 catalog opened with an essay urging climbers to switch to aluminum chocks (Stoppers and Hexentrics) that are placed by hand and removed without damage. The company deliberately undercut its own best-selling product, and within months chock sales outpaced pitons.