I DID see this thread last night (Friday), but I don't know enough about the 2007 UD set to know how these were released. That's why I didn't comment then. If all the Predictor cards were found in packs (retail and/or hobby), then I say they are parallels. The backs have NO difference from the base cards and only the color on the front and the Predictor Series stamp separate them from the base cards. Just b/c every single card isn't in these sets doesn't mean they aren't parallels. If it was a vote, I'd say parallel to base set.
NO PWE's EVER!!! PLZ PM me 1st before sending a trade or buy offer.
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Largest total PC card collections by Team, then Athlete (as of 3/31/23):
STL Cardinals (MLB) - 8700+; Carolina Panthers - 2800+; GB Packers - 1700+ cards
Mark Martin (NASCAR) - 2034 cards; Jimmie Johnson (NASCAR) - 1776+ cards; Jeff Gordon (NASCAR) - 1563; Ricky Rudd (NASCAR) - 828; Ozzie Smith (MLB) - 692+