808-807

Another quick one.

I just picked up some Bicycle Rider Backs, and every now and then when I buy them, I end up with decks coded 808.

Even though most of them are 807.

Does anyone know why this happens, or if there's any difference?

And if not, are there any interesting tidbits?

Since I've noticed the Ace of Spades always has this number for some reason.

And I heard somewhere that there's something special about them, though maybe it's just a myth, who knows.

Question 2: Specifically, the 808s I got this time have a blue seal instead of the usual black one. Does anyone know what that's about..?