The schematic pages in our undated Service Manual are themselves dated February 10, 1995 as "Rev 2". We don't know if SLEIC changed the date with each revision, so we cannot use that schematic date to disqualify the 1992 date that we show for this game. Users of the Spanish-language Petacos pinball forum have reported there that they have a game with a 1-ball ROM and also a game with a 2-ball ROM, so perhaps the two ROMs accounts for Rev A, or for multiple dates. We would be interested in receiving dated schematic pages made prior to Revision A.