I would say that the swiftmend glyph is even better now with the 2pice t8 set bonus and probably would be absolete with the new glyphs that came with the patch except for this bonus hopefully provides a better use for swiftmend. For pvp though i don't think anyone would argue the fact that this is a "must have"/

In an intense healing situation you need every GCD you can get to increase your throughput and if you have to use 2 GCD's just to use a swiftmend, then put another rejuv on the target, you are missing out on that much more throughput you could be producing.

On a fight like Hodir HM/mimiron. It is very crucial that all the healers in your raid put out as much healing as possible and if you miss a rejuv on someone because you had to reapply it after swiftmending, this will cause you to fall further and further behind. (assuming you are raid healing, but if you are tank healing then its still not a bad idea to have this glyph. It allows you to continue the constant throughput on the tank without using up another GCD.)

If you do not find yourself using swiftmend very often, then i would suggest using another such as nourish or WG because these too are very useful glyphs and if ur not using swiftmend very often, you are probably using other direct healing spells such as nourish.

Very helpful post, also I am thinking about swapping out my innervate glyph for nourish glyph in the future since I no longer have the t7 4pice set bonus, and i find myself every once in a while on tank healing and it would be a HUGE buff to my healing output since i generally have all my hots stacked on the tank before i start using nourish anyways. I do like having the innervate glyph not only for my own use but also to give inneravate to another raid member and still take some of its effect.

I would assert that a glyph that increases your raw HPS by 5% is pretty damn good, actually. Especially if it means that using swiftmend isn't necessarily a two-GCD operation. The flexibility of not having to refresh that rejuv is worth something.

Personally I found rejuv to be underwhelming enough even in optimal situations that I swapped it for the innervate glyph. It's nice knowing that I can give it out when I need a bit of mana, but not a full innervate's worth.

Though at the moment I'm trying out glyphed healing touch, which is practically sacrilege, I know. But I've got to say, even though it's pretty ugly mana-wise, it's definitely nice having a 0.9 second cast that works well on random raid targets.

I suppose this all really boils down to how often you cast swiftmend. Assuming your main strategy is to blanket the raid with RJ and WG, the glyph doubles the worth of swiftmend. But this gain can be still abysmally small considering in the parse above the total healing from rejuvenation alone was 2.7 mln, and the raw HP gain from swiftmend glyph on two casts would be ~20k total - that's ~0.5% of overall effective healing done, not mentioning raw healing done (that would be about 0.3%). At the same time, the glyph of rejuvenation wasn't that much better since it contributed only 51.6k healing total = 1.3% overall effective healing done - but that's about 4 times better than the glyph of swiftmend.

Agreed, there's no way to correctly Glyph for every single fight. The only solution (that I've found) is the old fashioned way of keeping stacks of multiple glyphs in my bags and just changing as the fight requires.

While I agree about Wild Grouth glyph, Swiftmend one is not so obvious. If you are using SM as part of your healing rotation - i.e. every time it's off cooldown, then yes, SM glyph is a must have. But if you are using SM as an emergency measure when someone is low on health, then benefit of this glyph is decreased. Add to that 4pcT8 bonus and recasting Rejuv on Swiftmended target becomes not that bad idea at all (assuming target was dangerously low on health before SM, ~1.8k instant healing can be useful).

The whole point of glyphing Swiftmend is to conserve GCDs and leave the HOT up. Think for a moment. You have a Rejuv on the tank at all times anyway, right? Why would you want to Swiftmend it and THEN re-cast Rejuv on the tank? That's not efficient. It's a waste of your GCD, not to mention the mana required everytime you have to re-cast it. This is what ends up happening:

You Rejuv the tank.
Tank takes a huge hit 2-3 seconds after you cast it.
You Swiftmend and then re-apply the Rejuv.

So, in the span of a few short seconds you spent mana on the Rejuv, Swiftmended and then even though the Rejuv probably had well over 10 seconds left, you have to re-cast it. That's really inefficient because you never allowed the original Rejuv to wear off. Playing a resto Druid is about managing your globals to output as much effective HPS as possible. There's really no arguement for not glyphing Swiftmend. I'd say 99% of resto Druids can't be wrong, and that's about how many use it.

Edit: Also, in hard modes (at least 2-3 of them), I use Swiftmend every single time it's off cooldown basically.

A fight like Kologarn you may have a point, the raid takes some damage every 10 seconds (?), your GCDs aren't particularly important. On a fight that does not allow you to miss a single GCD and where swiftmends are a key part of your healing (pre-nerf firefighter; IC Hard Mode, god knows why you are tank healing there; Knock, Knock, Knock on wood etc.) it is a hugely powerful and required glyph.

As people have said, I think there are too many glyphs available for different situations and I too keep a stack of a Nourish and Rejuv glyphs in my bags to change depending on the fight, though it is extremely rare that I switch to nourish.

The three best Glyphs for Restoration in 3.1 raiding for hardmodes are Wild Growth, Swiftmend, and..............innervate.

Wild Growth - greatly increases the effectiveness of our second best spell.

Swiftmend - saves a GCD thus increasing HPS and generally smooths out healing patterns. Extremely helpful for saving people in GCD locked situations.

The other throughput options, regrowth, nourish, and rejuvenation are not nearly as good as innervate, here is my reasoning. Regrowth and nourish - situational, the spells rarely account for more than 5% of my healing and thus the glyphs would account for considerably less. Under no circumstances should a druid be spamming Regrowth on the tank or the raid, and nourish spam situations are quite rare and do not occur on most ulduar fights making the glyph nearly useless.

Rejuvenation is our most powerful spell but the glyph is just underpowered. In numerous empirical tests the glyphed heal accounted for 1-2% of my healing and did not really 'save' people in the way I thought it might just from reading the tooltip.

Innervate however, is awesome. The glyph functionally gives you full mana from nearly zero if used on yourself. On the only ulduar fight that I routinely innervate myself, Iron Council hardmode, I spam down to about 1000 mana then innervate to full allowing near constant rotation. But the glyph really shines on fights where you could maybe use the innervate but probably don't need the entire effect like Mimiron between phases, Freya +3, and XT heartbreaker. At those times I can give my innervate to a PoH priest or a CH spamming shaman or even an OoM mage and the self mana return has provided considerably more than any of the other throughput options. The glyph provides the freedom to use your innervate as utility (following a rebirth or to sustain an aggressive holy priest) while still allowing you to pump out high HPS with less regard for mana sustainability. This freedom leads me to believe that the innervate glyph provides more throughput than any of the obvious throughput boosting glyphs although it's actual value is harder to calculate.

Unless new glyphs come out I suspect I will use Wild Growth, Swiftmend, and Innervate come 3.2

I currently don't really value the Innervate glyph highly. While I can certainly understand your arguments, I've found that:
A) I don't need the extra mana when I have to use it on myself (I nearly always end up with half a mana bar left if I innervate myself)
B) On fights where I'd be able to give it away, nobody else needs it either

In 3.2, where Innervate is much more granular, I think I might swap to the Innervate glyph, because those two problems should go away.

I have been experimenting with the glyph of nourish. I have been using castsequence macros to see how many nourishs i can get max benefit from this glyph. So far my spell rotation looks like
Regrowth, Rejuvenation, Lifebloom, Wild Growth, Nourish, Nourish, Nourish, Swiftmend, Wild Growth, Lifebloom, Nourish, Nourish

My goal is to spam as many nourish as i can while Regrowth, Rejuvenation, Lifebloom, and Wild Growth are ticking. so far this is the rotation i have does anybody have any better rotations or suggestions?