I don't know if anyone has had a similar experience, but I found boosting past 61 to be too boring to take (I really hate the Auchindoun instances). I boosted all of my teams to 61 but couldn't stand Mana Tombs or Shadow Labs long enough to take them to 68.

I've been questing in Hellfire from 61 to 65, then Nagrand from 65-68 and it is much more enjoyable. It helps that they are two of my favorite zones in TBC but I think alot of my issues is that after taking 9 teams to 61 through instances, it gets old.

Right now I have 6/10 teams to 68, ready to hit Borean Tundra and 4 tames at 61 with about a month left on my RAF.