In the late 1950s the company made more widespread use of digital score reels, making multiple player games more practical as most scoring was expressed by cluttered series of lights in the back box. The score reels eventually appeared on single-player games, now known as "wedgeheads" because of their distinctive tapering back box shape. By the 1970s the artwork on Gottlieb games was almost always by Gordon Morison, and the company had begun designing their games with longer 3-inch flippers, now the industry standard.