I think you'd better check your sources a bit more closely. The JSA went into the fake Asgardian dimension in 1986 (LAST DAYS OF THE JSA special), which took place immediately after the CRISIS in the current timeline, and were released in 1991 or 1992 (ARMAGEDDON: INFERNO miniseries), which takes place about a year before ZERO HOUR in the current timeline. Any which way you cut it, that ain't twenty-five years.
Or maybe I just missed the last retcon memo or something, and my info is all out of date. I dunno.
