Err, edit: The second formula should be
Non SS PoH = Average Heal * (1 + 0.5 * (1 + Mastery %)) * (1 + Critical %)
You were double dipping crit.
No, that's how it works for a non-PoH Spirit Shell. It double-dips on Crit because your DA application depends on critting. I've been running my Spirit Shell calculator on that exact equation (the double-dipping crit one) since Beta and it is accurate. (Predicted value of GH Spirit Shell in my priest's gear: 117737; actual value, 117739. I think there's rounding that the game and I do differently.) I'm in the process of updating my SS Calculator so it can be a stand-alone web app, but if you really care to check it out, it's in the spreadsheet linked in the second paragraph here:
12/22/2012 12:32 PMThe only problem is if they reduce our absorbs too much, we won't be brought over Holy Priests. It's a pretty tight balancing act that I doubt will ever really be achieved. I think they're making some correct moves by nerfing SS.
Posted by Qùess
I've had some similar sentiments expressed to me in response to my calls for toning down DA, and I still think that, well, the people who would abandon Disc entirely if it is no longer the strongest healer on the WoL meters are myopic. Regardless of where we place on the meters, Spirit Shell is insanely powerful. Even if it is not a throughput booster to use it, hell, even if it were a slight throughput reduction to cast it, it would still be insanely powerful, just perhaps a little more sane than it is now.
I happen to think Holy Priests are excellent, too, but I have the luxury of raiding with a truly amazing Holy Priest. (I feel so outclassed in my current healing team, lol.) Unfortunately right now he's stuck playing Disc in our progression since 5.1 because, well, we're down a few healers from where we'd like to be and Disc Priests do an excellent job of making up for that.
That all said, we raid in 25-player content, so I have no idea if Holy holds up as well in 10-player raids as it does in 25s. (I play my Disc Priest in 10-player raids, but since I have to maintain a Shadow spec for stupid arglebargle dailies I haven't had a chance to try Holy.)