Fully raid buffed, those numbers look about right for the gear you have. I theorycraft it to about 20K HPS and about 7HPM with my (lesser than your) gear, and no raid buffs (assuming you hit people that benefit from the glyph, i.e. not at 100% health).

So we all know that Attonement got fixed/nerfed so that it didn't get completely rediculous on Heroic Halfus.

My question for anyone who has healed heroic halfus using Atonement is this; how often is the Atonment heal hitting this cap? If every Atonement heal is reaching this maximum, I think we'd be better off sacrificing some spell power (and dps I suppose) for other useful items.. For example, our [Val'anyr, Hammer of Ancient Kings] or [Scarab Brooch]. Thoughts?

I haven't yet attempted this. It's just a thought I was having after seeing everyones average heals from Atonement coming out quite evenly on World of Logs for heroic Halfus.

I was unbuffed. Just took the numbers from the combat log on the live server inc. castspeed with BT and multiplied the absorb+Heal (&crit heal) by 2,08.

Ah, I wasn't factoring in BT, which significantly boosts the HPS. Thoes are probably the right numbers with your gear and BT.

My smites are hitting roughly the same, but on Halfus I'm very much expecting to hit a 30-32k atonement cap once it's in place. First of all, crits on Halfus (or any other damage modified encounter) will be at the cap straight away. Secondly, a 30k smite will heal a little over 12% more than that on a tank through Twin Disciplines and your tank's own +healing incoming talent. Even more so with Archangel up. Hitting the cap naturally on Halfus heroic will be very easy, and of course crit becomes heavily devalued in this situation (and for those that use it, the Holy fire glyph will be devalued too). Haste, on the other hand, will become astoundingly better.

It'll certainly be an interesting change for priests that frequently use Atonement to heal. I believe my best natural Atonement crit currently sits around 26k with Archangel up on a Holy Fire'd target, so I'm already close to soft-capping and devaluing crit. With those numbers, I'd be capping crit Atonements on Omnitron (poison and/or mana pools), Theralion under the magic debuff and Halfus for basically all of the fight.

Curious thought. There might come a point where we will be flasking for stamina instead of intellect. I am not saying this will happen in any _current_ fight or with T11, but there may be a point where not only do we want more Stamina for Atonement (30%) but also more Stamina for Divine Aegis (20%), especially as we get more Mastery which in turn allows for bigger Divine Aegis.

Also, while we're at it, has anyone done any work on the exact haste break points for Divine Hymn and Hymn of Hope? Including with/without Borrowed Time and Power Infusion?

The cap is already in place, hence my original question It was a hot fix added on the 4th of January.

What meta gem should you use if your in this spec the 3% critical damage gem with 54 int or the 54 spirit 3% critical healing does anyone know which one actually has the 3% affect for AA/A spec?

Hello EJ. I did theorycraft based on PTR (4.0.6) info we currently have to determinate the best 25man raid healing method and gear/stat that you should be collecting. The healing methods I tested were PoH spam and PWS spam.

Inside the [] is always my own comment. I use codes like PoHm5HPM. PoH is spell I calculate and m(astery) or c(rit) is the gearset I use, 5 is how many players PoH hits and in last part empty means healing amount calculation, HPS healing per sec and HPM healing per mana. In PWS codes iW = Inner Will and iF = inner fire
In formulas SP=SpellPower, m = mastery and c = crit%. TD = Twin Discipline [1.06], Imp. PWS = Improved PowerWord: Shield [1.2], SD = Shield Discipline [=1+0.025*mastery], DA = Divine Aegis [0.3], PoHG = Glyph of Prayer of healing [0.2]

You can calculate healing done by a spell with formula:
Healing = ((BaseValue of healing spell + SpellPower*Coefficent)*Modifiers)*[Next part is how much crit increases healing](1+(Crit%*(0.5+DA*SD))
HPM is calculated by fromula: HPM = Healing/manacost
HPS is calculated by formula: HPS = Healing/(casttime*(1-Haste%)) and on insta cast spells cast time is (1.5-Haste%). [In PWS spam I inclded burrowed time.]

PTR INFO ABOUT PWS AND PoH (if I have understood them right):
PWS: Coefficent increased from 41.8% to 87% and base value incresed from 3906 to 8136, manacost increased from 19% basemana (3912) to 25% basemana (5147.5)
PoH: Coefficent reduced by 15% (from 0.4 to 0.34), base value reduced by 15% (from 3633-3837 to 3087-3262), crit heals double DA

PWS healing:
PWS SHIELD + Glyph healing *Glyph crit
PWS: ((BaseValue+SP*Coefficent)*TD*Imp. PWS*SD)+(((BaseValue+SP*Coefficent)*TD*Imp. PWS*SD)*0.2)*(1+(c*(0.5+DA*SD)))

PoH healing:
( POH healing *PoH crit (Shield from DA doubled) + Glyph healing )*Players healed(1-5)
PoH: (((BaseValue+SP*Coefficent)*TD)*(1+(c*(0.5+2*DA*SD)))) + (((BaseValue+SP*Coefficent)*TD)*(1+(c*0.5)))*PoHG)*Players healed(1-5)

In my tests I used two gearsets of average item level 359. One of the gearsets favours crit and one that favours mastery mastery. In both I used 31/6/2 spec.
I included raid buffs (5% crit, food + flask, 5%int from all stats buff, 5% haste and 10% spellpower + InnerFire[If I wasn't using IW]) to my calculations and got stats:

Stat	Cgear	MgearIF	MgearIW
SpellPower	10245	10163	9556
Crit	26.47%	12.01%	12.01%
Mastery	11.79	19.03	19.03
Haste	7.81%	7.81%	7.81%

NOTE: There are 2 upgrades for mastery spec: [Soul Breath Leggings] of the Wavecrest droped from Al'akir and [Planetary Band]of the Wavecrest droped from Conclave of Wind. I haven't calculated the new values using theese items!

Next I test how much each spell heals and their HPM and HPS:

Spell/modifiers	healing	HPM	HPS
PWSmiF	39339	8.49	37697
PWSmIw	38156	9.87*	36524
PoHm5	51682	9.65	22424
PoHm4	41345	7.7	17939
PoHc5	55091	10.29	23902
PoHc4	44073	8.23	22424

*Includes the additional mana we gain from rapture procs compared to other healing methods.

PWS: ((8136+SP*0.87)*1.06*1.2*(1+0.025*m))+(((8136+SP*0.87)*1.06*1.2*(1+0.025*m))*0.2)*(1+ (c*(0.5+0.3*(1+0.025*m))))
PWSmIf: ((8136+10163*0.87)*1.06*1.2*(1+0.025*19.03))+(((8136+10163*0.87)*1.06*1.2*(1+0.025*19 .03))*0.2)*(1+(0.1823*(0.5+0.3*(1+0.025*19.03)))) = 39339.38
PWSmIfHPM: (((8136+10163*0.87)*1.06*1.2*(1+0.025*19.03))+(((8136+10163*0.87)*1.06*1.2*(1+0.025*1 9.03))*0.2)*(1+(0.1823*(0.5+0.3*(1+0.025*19.03)))))/(5147.5*0.9) = 8.49
PWSmIfHPS: ((8136+10163*0.87)*1.06*1.2*(1+0.025*19.03))+(((8136+10163*0.87)*1.06*1.2*(1+0.025*19 .03))*0.2)*(1+(0.1823*(0.5+0.3*(1+0.025*19.03))))/(1.5-0.2181) = 37696.8

PWSmIw: ((8136+9556*0.87)*1.06*1.2*(1+0.025*19.03))+(((8136+9556*0.87)*1.06*1.2*(1+0.025*19.0 3))*0.2)*(1+(0.1823*(0.5+0.3*(1+0.025*19.03)))) = 38155.74
PWSmIwHPM: (((8136+9556*0.87)*1.06*1.2*(1+0.025*19.03))+(((8136+9556*0.87)*1.06*1.2*(1+0.025*19. 03))*0.2)*(1+(0.1823*(0.5+0.3*(1+0.025*19.03)))))/(5147.5*0.9*0.85) = 9.68
When using IW we gain more mana from rapture procs. The amount of additional mana we gain is (5147.5*0.9)-(5147.5*0.9*0.85) = 696mana per proc
Now if we think this as a reduced manacost compared to other specs I have compared here we pay 74.35 less mana each cast. This makes the HPM value to increase to 9.87.

PWSmIwHPS: ((8136+9556*0.87)*1.06*1.2*(1+0.025*19.03))+(((8136+9556*0.87)*1.06*1.2*(1+0.025*19.0 3))*0.2)*(1+(0.1823*(0.5+0.3*(1+0.025*19.03))))/(1.5-0.2181) = 36524.25

PoH: (((((3087+3262)/2)+SP*0.34)*1.06)*(1+(c*(0.5+2*(0.3*(1+0.025*m)))))+(((((3087+3262)/2)+SP*0.34)*1.06)*(1+(c*0.5)))*0.2)*Players healed(1-5)
PoHm5: (((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*(0.5+2*(0.3*(1+0.025*19.03)))))+(((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*0.5)))*0.2)*5 = 51681.73
PoHm4: (((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*(0.5+2*(0.3*(1+0.025*19.03)))))+(((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*0.5)))*0.2)*4 = 41345.38
PoHc5: (((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*(0.5+2*(0.3*(1+0.025*11.79)))))+(((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*0.5)))*0.2)*5 = 55091.03
PoHc4: (((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*(0.5+2*(0.3*(1+0.025*11.79)))))+(((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*0.5)))*0.2)*4 = 44072.82

PoHm5HPM: ((((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*(0.5+2*(0.3*(1+0.025*19.03)))))+(((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*0.5)))*0.2)*5)/5353 = 9.65
PoHm4HPM: ((((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*(0.5+2*(0.3*(1+0.025*19.03)))))+(((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*0.5)))*0.2)*4)/5353 = 7.7
PoHc5HPM: ((((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*(0.5+2*(0.3*(1+0.025*11.79)))))+(((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*0.5)))*0.2)*5)/5353 = 10.29
PoHc4HPM: ((((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*(0.5+2*(0.3*(1+0.025*11.79)))))+(((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*0.5)))*0.2)*4)/5353 = 8.23

PoHm5HPS: ((((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*(0.5+2*(0.3*(1+0.025*19.03)))))+(((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*0.5)))*0.2)*5)/(2.5*(1-0.0781)) = 22424.01
PoHm4HPS: ((((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*(0.5+2*(0.3*(1+0.025*19.03)))))+(((((3087+3262)/2)+10163*0.34)*1.06)*(1+(0.1823*0.5)))*0.2)*4)/(2.5*(1-0.0781)) = 17939.21
PoHc5HPS: ((((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*(0.5+2*(0.3*(1+0.025*11.79)))))+(((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*0.5)))*0.2)*5)/(2.5*(1-0.0781)) = 23902.25
PoHc4HPS: ((((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*(0.5+2*(0.3*(1+0.025*11.79)))))+(((((3087+3262)/2)+10205*0.34)*1.06)*(1+(0.2647*0.5)))*0.2)*4)/(2.5*(1-0.0781)) = 22424.01

If you your Prayer of healings HoT isin't fully consumed because you have to cast a new PoH or PoH only hits 4 or less targets it's a worse HPM tool than PWS would be. PWS also has almost double HPS potential and you can cast it when mooving and with IW movement speed boonus it is very tempting choise. But we need to remember that PoH can proc inspiration. I would still go to mastery and PWS spam for 25man raid healing and crit for 10man or tank healing.
I wasn't able to figure out what is better healing tool when we get higher (372) itemlvl. It would be nice if someone would be able to calculate that to me ^^. If I go to PWS raid healing I could be using spec like this or a spec with reflective shield to help dps.
Please tell, if you were able to find mistakes and recalculate the values and send them as a private message so I'm able to change them to this post. Thanks ^^

Special thanks to Kiel that helped me and you for reading.

EDIT: Added all results and gearset stats to tables. Seems that the reflective sheld only reflects dmg that the shield on you takes. So I take back my statement of that.
EDIT: Added the amount of mana you save when using IW and MA compared to just MA to the HPM value of SPWmiW. Added to mastery/spirit item upgrades, but didint calculate the new values based on item upgrades.

I have tested my disc priest with the spreadsheet, posted in the original post. The intent was to find out more exact HpS and HpM values for my character, but i had some results that made me wonder.

The character in question is a Heroic running ilvl330ish 32/9/0 spec with these statistics:

Intellect -------- 3941

Spirit ----------- 1768

Spell Power ----- 5464

Critical Rating -- 1129

Haste Rating ---- 515

Mastery Rating -- 923

The basic HpM and HpS results for important heals surprised me quite a lot.
Below are the most important spells, sorted by HpM. Mostly from the "spells" tab of the spreadsheet, but i also added my some of own entries for comparison. Specifically, Prayers hitting only 2 targets, Glyphless PoH on 2 targets, and a hypothetic estimate of ToT GHeal (+10% HpS, HpM=Heal). The result is as follows:

spell ------------------- hpct ------ hpm

Prayer of Mending x 5-22356 ---- 11,05

Prayer of Healing x 5 - 25254 --- 10,80

Penance --------------- 8479 ------ 5,39

Shield ----------------- 9885 ------ 4,63

Prayer of Mending x 2 8942 ------ 4,42

Binding Heal ---------- 18304 ---- 4,36

Heal ------------------- 3519 ------ 4,35

Hypothetic ToT GH ---- 10300 ---- 4,35

Prayer of Healing x 2 - 10101 ---- 4,32

Greater Heal ---------- 9385 ------ 3,86

Glyphless PoH x2 ----- 8838 ------ 3,78

Flash Heal ------------- 11729 ----- 2,79

So, to be blunt, Shield is the second highest HpM spell and also highest single-target HpS spell, outside of Flash Heal. That's before Rapture proc. That suprised me a lot, and i'll probably find myself using shields much more outside of just maintaining Weakened Soul on tank and Rapture procs.

The other surprise came when i saw the efficiency and throughput of PoH hitting just two targets. Basically, a glyphed PoH already matches the efficiency and throughput of Greater heal per cast when there are just two people injured. With three people injured it completely outstrips it. Which makes me wonder if Greater Heal is actually useful for anything at all, outside of hard spamming just the tank, where it benefits from Grace and Weakened Soul.

Now, obviously, there might be an issue with the spread sheet. In fact i have found at least one bug: for some inexplicable reason putting points in Surge of Light seems to result in HpM loss on most spells. But i also must say that this matches my current experience, where any situation, where i am spamming GHeals i find myself feeling that i heal too little for too much cost, when compared to using a mish-mash of Shields, Penances and PoHs.

EDIT: added some faux table formatting for some readability. /mental note - learn to use the table tag

I assume that you mean the Glyph of Smite? The problem is that Holy Fire isn't affected by the Glyph of Divine Accuracy, so you're running at up to 17% miss chance on Holy Fire vs a boss. Factor in the poor uptime (cooldown + high miss chance) and it actually works out as a DPS & mana loss to use Holy Fire in your Smite-for-A/AA rotation. When I had the glyph active, I worked in Holy Fire on trash clearing, but that was the only time.