zig zag slotZ Zag is a Trade Stim. by Groetchen Tool & Mfg. Co. (circa 1931). Information about it's history and background, photos, repair help, manuals, for sale and wanted lists, and census survey isSome of the critical features of z zag slot game systems include a low probability of winning consistently, the hh level of risk, the necessity to combine with other strategies,