Big Keen is still 310.
Hitting 525 made me realize that... nothing changes when you reach cap. You have to do the same exact thing you do while skilling (complete all kinds of them) in an attempt to get the one(s) you want.
Little Keen still doesn't have the mount (though that doesn't matter), does have the raptor pet and is working on the gnome pet. It would be nice if I could focus just on Tol'vir (for the alchemy recipe to turn you into a dragon mount), but the four dig sites you get are random, could be anywhere.
He's about a quarter of the way into 83, mostly just from archaeology (he did two XP quests and a handful of cooking/fishing dailies).