From a concept of class progression, it just doesn't make sense that any alteration of a lvl 60 3.0 rotation should be viable over what the intended lvl 70 4.0 rotation is meant to be. Ok, I guess UI is great for AOE since it lets you flare twice, but outside of that, where are the gains? You can't sell me on it's viability for the mere aspect of allowing me to get an extra tick of mana. I was hoping for something more when the changes to BLM were announced it regards to UI to phase us into our 4.0 rotation without looking back at 3.0. I think they could have fixed this by buffing our Fire IV to pre-nerf levels while under improved UI. That gives us a reason to want that Blizz 4 before going into AF.