1998 Score RTPP2 one of one

This may be old news, but I can confirm that there are more than one copy of the 1998 Score Football "1/1's" in circulation. I sometimes post on the Beckett message boards, and a few members there claim to have up to five copies of some players, and I myself own two identical copies of the Jimmy Smith 1/1 from this set. Apparently, only one set was inserted into packs in '98, but several more sets were produced and sold when Pinnacle went bankrupt. I've never seen any info about whether this is also true for 1998 Score Baseball, but this tread makes me highly suspicious -- what do you guys think?