But just how much haste do you need to increase your Holy Power generation enough--or how much mastery do you need to make your ShoRs big enough--to compensate for those misses?
I guess if I had a hypothesis, it would be that replacing it with avoidance stats (dodge and parry) will net more holy power, in addition to their own value.
Before i begin, i havent been tanking this xpac (my friends are all about pvp now). I have in past and i still read a lot about pally tanking. My opinions are based on my reading and not on current xp.
Even with the 5.2 changes avoid stats are bad for prot pallies.
I know its completely backward but its the truth. Even when doing something terrible like binding sotr to cs a control/haste build still wins out.
If you are the number crunching type, check out theck's blog: sacred duty. He sims every type of gear set we can get and control/haste (aka hit/exp capped and then all the haste you can get) always comes out on top by fairly nice margins.
That being said, i could see going slightly under the exp cap being viable for a large haste boost. Just remember that when tanking dmg spikes are what kill you. And 100% guaranteed hopo gen is a fine way make sure that you always have the tools to manage such dmg spikes at hand.
Ps: the latest sacred duty blog is all about the effects of sacred shield. The math is pretty interesting and so are his results. Needless to say, many tank not using ss should read it and be enlightened :)