Its april 2016 yet no healer stat weights???

[Kaurie]

Crit is useful when shielding or when hit point pools are so large that a random crit = one less heal. FFXIV isn't really designed like this....

This is precisely how FFXIV is designed. No one takes damage and then all of a sudden everyone takes 10k. That crit Medica means you cast it once instead of twice.

Just to add:

EDIT, thanks for pointing out the calculation issues and I have adjusted below

Determination It takes 400 Determination to exceed the standard deviation of your heals. That is to say, 200 DET = 30 HP more per Physick, 400 DET = 60 HP more per Physick on average. Where the standard deviation of a physick, of my last testing, is 55HP. That is to say about ~70% of the heals fall within that +/-55HP window. For my calculation, 100 DET = +30 hp. Physick does near 3.5k (actually a bit more), so added DET = 30/3500 = 0.4%.

Added Healing Power (200 DET): 0.8%

Spell Speed It takes a lot of this to become useful to really be noticeable. 26.5 SpS = 0.01 reduction. Therefore, 100 spell speed reduces by 0.037 seconds. Spell Speed does however affect your potency on your HoT. I think the effect of this is similar to DET, but as it also lowers you recast time this is more desirable. For my calculation, 100 SS = 0.037 shaved off a 2.5 GCD which means your added healing power for 200 ss is 2*(0.037/2.5) + HoT potency bonus.

Added Healing Power (200 SS): 2.96% without HoTs, ~3.00% with HoTs

Critical Rate and Severity For every 200 Crit, you have a 5% chance to crit more and a 0.1x modifier. As the modifier is in question, I'll leave this out of the calculations.. The added healing power is then (Chance x Added Value) = (5% x 0.5) = 0.05 x 1.5 = 2.5% added to your healing power.

Added Healing Power (200 CRIT): 2.5%

Now, yes, crit is unpredictable, but the added healing power is 6.25x greater for CRIT than DET, and is 1.69x greater for CRIT than SS

Of course these are simple calculations out of a much more complex situation, but the general idea is still there.

[Katlyna]

Spell Speed It takes a lot of this to become useful to reall be noticeable. I am at I think 600 SS with 2.47 CD or so. Like every 100 SS you get a -0.01 seconds off your GCD- Say you had 1050 SS, that's ~ 700 from the default which should give you 2.38 seconds GCD. That means every 36 casts you will get a free heal. In terms of saving people, no one should be that close to the brink of death that 0.07 seconds means clearing and not. Spell Speed does however affect your potency on your HoT. I think the effect of this is similar to DET, but as it also lowers you recast time this is more desirable. For my calculation, 100 SS = 0.01 shaved off a 2.5 GCD which means your added healing power is 0.01/2.5 + HoT potency bonus.

Your spell speed calculations look wrong. This is what I have stripping my Astros clothing off while under Diurnal:
864 - 2.19
821 - 2.20
802 - 2.21
765 - 2.22
703 - 2.25
605 - 2.28
569 - 2.29
542 - 2.30
515 - 2.31
506 - 2.31
473 - 2.33
464 - 2.33
418 - 2.35
372 - 2.37
354 - 2.37

[Kaurie]

Your spell speed calculations look wrong. This is what I have stripping my Astros clothing off while under Diurnal:
765 - 2.22
703 - 2.25
605 - 2.28
569 - 2.29
542 - 2.30
515 - 2.31
506 - 2.31
473 - 2.33
464 - 2.33
418 - 2.35
372 - 2.37
354 - 2.37

Is that your cast time or recast time? Healers have a shorter cast than recast time, which is important to take into account - Thanks for throwing the numbers though, I am at work and was operating from memory.

If GCD recast follows the same trend, it looks like 100 SS = 0.04 not 0.01 decrease. That would bump up the healing power to 4x what I said, so instead of 0.4% it's a 1.6% increase or 2.4% with HoTs. That's still 1/3 of CRIT though.

That also means it would take +625 (979 total) ss, not +2.5k ss to reach the 1/10th faster healing. Apologies for the error.

EDIT: Just realized you said while under Diurnal, with the 5% buff so that's with that I am guessing. Can you show the difference without the buff as well?

[Granyala]

Spell Speed It takes a lot of this to become useful to reall be noticeable. I am at I think 600 SS with 2.47 CD or so. Like every 100 SS you get a -0.01 seconds off your GCD- Say you had 1050 SS, that's ~ 700 from the default which should give you 2.38 seconds GCD. That means every 36 casts you will get a free heal. In terms of saving people, no one should be that close to the brink of death that 0.07 seconds means clearing and not. Spell Speed does however affect your potency on your HoT. I think the effect of this is similar to DET, but as it also lowers you recast time this is more desirable. For my calculation, 100 SS = 0.01 shaved off a 2.5 GCD which means your added healing power is 0.01/2.5 + HoT potency bonus.

Added Healing Power (100 SS): 0.4% without HoTs, ~0.8% with HoTs

Critical Rate and Severity For every 200 Crit, you have a 5% chance to crit more and a 0.1x modifier. As the modifier is in question, I'll leave this out of the calculations.. The added healing power is then (Chance x Added Value) = (5% x 1.5) = 0.05 x 1.5 = 7.5% added to your healing power.

Added Healing Power (100 CRIT): 7.5%

Now, yes, crit is unpredictable, but the added healing power is 18.75x greater for CRIT than DET.

Your data is flawed:
Spell speed: reduces cast time by 0.01s for every 26.5SS (according to the data earlier in this thread).
So 100SS/26.5 ~ .0377 reduction of cast time.
(2.5-0.0377)/(2.5/100) = 98.5% of cast time. Roughly 1.5% faster cast times. A.k.a. 1.5% more throughput.
Add to that the HoT bonus which I cannot calculate right now but I think you'll easily end up in the 2%+ range.

Crit: 200 crit = 5% chance -> 5% * 0.5!! = 2.5%.
If it doesn't crit you would end up doing 1.0 instead of 1.5. Calculating each crit as an ADDITIONAL 1.5 is wrong.
A modifier of 1.6 would make that a 3% gain.

Sadly I do not have any data for DET.

Something seems off though. According to this napkin math, SS would have double the value compared to crit per stat point. So I do think source data is questionable.
DEVs aren't stupid, they will balance the secondary stats somehow.

Another thought: someone mentioned that 200(?) ACC would add 20% hit chance. Depending on our base hit chance this stat has the chance to outclass every other secondary by a whole order of magnitude, making it the best stat even if it does nothing for the healing. (not sure how important healer DPS is, as I do not raid high end)

I have to admit though: getting sub 5% performance increases for putting in Grade Vs in all of my slots is woefully ... underwhelming. :/

[Kaurie]

Snip/

Thanks for pointing out the issues Not sure if it was apparent, but I posted my calculations, so that people could point out errors as such. I'll adjust my original post.

TLDR the added healing power is 6.25x greater for CRIT than DET, and is 1.69x greater for CRIT than SS

CRIT 2.5% increase
SS 1.69% increase
DET 0.4% increase

On this note, the above is really for WHM/AST only. SCH the increase of CRIT is more substantial, as Spell Speed doesn't reduce the cast time of Eos/Selene AND critical hits from Eos/Selene proc a spell speed buff on you. This is coupled with the double shield applied with Adlo

[Granyala]

TLDR the added healing power is 6.25x greater for CRIT than DET, and is 1.69x greater for CRIT than SS[/I][/B]

Yet since we still talk about a delta of <1% (I do NOT believe that DET is that bad, makes no sense at all).
So for all intents and purposes: in practice it is completely irrelevant what you meld. The budget just doesn't allow for notable effects to happen.

[Kaurie]

Yet since we still talk about a delta of <1% (I do NOT believe that DET is that bad, makes no sense at all).
So for all intents and purposes: in practice it is completely irrelevant what you meld. The budget just doesn't allow for notable effects to happen.

I did testing with DET in 2.5, 3.0 and 3.2. In each scenario, 100 DET gave an insignificant change to your heals. The most recent was just a few days ago, where +44 DET gave on average 6.9 HP more.

This makes sense, as we have 1150 MND and 108 Magic Damage on a 230 weapon. Assuming, simply, a 10 to 1 ratio of Magic Damage to MND, that is 2230 MND. Assuming DET is roughly 1/10th of a MND (similarly to other jobs), and say we're close to 600 DET that's 2290 total. We can add in CRIT - but as we're talking about uncritted heals, I am going to leave it out. So I have 2290 equivalent MND and my heals are 3500-> we can conclude 1 MND = adds 1.5 HP. If we assume (correctly or not) DET = 1/10 of MND, then 1 DET = 0.15 HP. Then we can multiply 44 DET as tested, and you get 6.6 HP added. So yes, this falls in line with our assumptions of 1 WD = 10 MND = 100 DET roughly.

The thing is, as we get higher and higher stats, CRIT becomes more powerful (as it applies that chance on to the base heal) where 1.5x a 100 HP heal gives 50 more HP, but 1.5x a 4k heal gives 2k more HP. Conversely, DET becomes weaker (where 6 HP of a 100 HP heal is a substantial increase, but 6 HP of a 4k heal is insignificant).

[Katlyna]

I have to admit though: getting sub 5% performance increases for putting in Grade Vs in all of my slots is woefully ... underwhelming. :/

And isn't it technically less than that since you are comparing IV vs Vs... in which case the difference is only 1.5% or 2.5% depending on which stat you are using.