Panini is notorious for publishing their checklists without the correct card numbers.
TCDB policy is to use the numbers printed on the cards. This is why it often takes some time to get Panini inserts loaded (especially autographs and memorabilia). It's not as bad when they use two letters for initials, but they are starting to use three letters in some sports, and those three letters sometimes won't even be consistent across the same product (for example, if it was my name, "Script Autographs" might be SA-JAG and "Penmanship Marks" would be PM-JGE).
I'll never quit collecting entirely, but I am downsizing. Check out my COMC store and help me thin out what I don't want so I can buy cards that I do want. See something you like? Send me a message on here, and we can knock the price down quite a bit. I'll even take a bit of a loss if it means getting you a card you really want.