Well going back and looking at all our talents I think Fyff can definitely pull 180k dps if he took Incarnation over GG and Pulverize over Rend and Tear.
And I'm starting to think I might do that for Mythic+ progression for a couple of reasons:
1) Pulverize should increase your damage while keeping the damage reduction the same. And we are using Thrash pretty much on CD regardless.
2) Incarnation lasts 30 seconds and because of the decreased cooldown on rage generating abilities should give you more than enough rage to spam your Active Mitigation abilities while also giving you a very potent DPS boost during key burn phases.
I'll probably end up switching between talent options depending on fights but I can see there being a big discrepancy in damage output (for now, until the GG changes go in, if they go in as stated in the PTR notes)
I'm also thinking about switching to Brambles because Bristling Fur is really, really underwhelming on anything other than large trash pulls and I'm using my Oh Shit buttons during those anyway so the extra AE damage from Brambles would be welcome.