The perks were already massively overhauled recently, so I’m afraid they won’t alter them too much more in the foreseeable future (although there will be a few small changes in the update coming next week).
I like the idea of Sprinter. I guess it achieves the same sort of thing as Adrenaline, though.
I’d want my hounds to also have Fast Adaptation and Berserk and Duellist and Crippling Strikes and Fearsome and Backstabber and Underdog (they’re dogs, after all) and Hold Out and Steel Brow and Fortified Mind and Colossus and Pathfinder and Lone Wolf and Anticipation and Nimble. Oh, and of course Bark Mastery, so that the fatigue cost of barking is halved and each bark triggers a morale check for enemies within a 4-tile radius …
I tried using Recover, but mostly you only had the opportunity to use it if the enemies about you were already on the way to being beaten (in which case it didn’t matter much that you could no longer use more specialist skills). I think maybe it would be more usable if, instead of sacrificing a whole single turn, it cost 4 action points and doubled your fatigue recovery after the current turn.