Quick Q re: EF - can the ticks crit, and/or if the initial cast crits, do the ticks scale off of THAT value?
I've honestly never played Holy, nor used EF ever, so I didn't check those details. Not that it would be game-breaking, in terms of us stacking Crit, but it would mean that EF scales with haste, mastery AND crit, versus SS only scaling with haste.
I guess the issue is that, unless you're just NOT tanking, SS overheal is extremely low. Even with EF givign a raw healing output of 3x SS, you're going to have a lot of time intervals where that healing (from EF) is 50-100% overheal. This is from both outside assistance AND SOI healing.
Now, what's interesting is that you could lower the overheal issue by using BH glyph...but with that nerfed to shit, I don't think that'd really be worth much now
I'm still not sold at all on EF > SS, purely on nature of absorbs and the fact that EF is just sniping heals that would/should be covered anyway. I can see it's use in certain high-sustained damage situations where its overheal values will be low, but thus far in MoP, we haven't had much of that. Plus the whole "opportunity cost" of not using a ShotR (t16 bonus notwithstanding).