I think the 2 that the NCAA website lists are the 2 to follow, as well as the one the committee puts together, but isn't updated weekly since it clues people in on what they're thinking so you know, if you're on their list (of 10), you just need to keep winning and you'll likely get one of the 8 byes.
We weren't on that last list 2 weeks ago, but I think sweeping the last 4 games would get them that bye (that comes with a home game 2nd Round game).