[Peter_Spaeth]

I think it's the Beckett designation of traded and update sets as XRCs -- the fiction is that only cards that were available in packs are real rookies so if the only cards from a particular year were in traded or update sets, those are "XRCs" like the Score Traded and Fleer Update Biggios and the next year's cards are RCs. I think it's ridiculous, and I believe nobody follows it any more. To me the 1989 Biggios are second year cards. Sorry to hijack your thread.