Auto percentage replay is preset

Williams and Bally games can adjust replay scores automatically to hit a chosen replay percentage, set at the factory to about 10%. Change it in the adjustments if your location needs it.

Systems

• Williams System 11
• Williams System 11A
• Williams System 11B
• Williams System 11C
• WPC Alpha-Numeric
• WPC Dot Matrix
• WPC Fliptronics
• WPC DCS
• WPC-Security (WPC-S)
• WPC-95

Source: Pinball Machines: How They Work & Troubleshooting, Norbert Snicer