Without digging you up on armory (or even knowing which spec you are), it is unlikely you're truly gcd capped - as you can see in the current unholy thread, some discussion is going on on the topic, and even in 2pc T13 the break point for haste is still probably at least 2600. This isn't to say you won't be capped at times, but haste is still valuable. Some have argued that haste may still have some value even when wasting RP due to increased OB/SS strikes available.

What I interpret your statement to mean, then, is that the find yourself wasting resources (probably RP) at times.
This happens for me on occasion, but not often and I'm just over 2600. My guess is that you're not FS/DCing early enough in the rotation (priority). For example, as unholy I'll usually (with a full set of runes) SS twice, then FS once. This gives me runes on cd. Then alternate strikes with DC so that it doesn't build up and cap. Of course, when I soak damage with AMS, I usually cap RP, but this is addressed by anticipating AMS use by dumping everything I can - especially RP - ahead of time.

If you do find yourself with capped RP and extra runes, then use your priority (depending on OBL vs masterfrost vs Unholy) to determine which resources to spend first. The OP in both threads has good info on this. True capping should only happen a few times a fight, typically during bloodlust, during big AMS soaking, and right after ERW (which shouldn't be a problem if you anticipate use).

i have a question regarding the 4 piece tank bonus:
does it matter, if i have glyphed vampiric blood or is the unglyphed used?

Glyphing it changes the raidwide version too.

Did anyone notice that blizz fixed the laggy absorb of amz and does anyone know how they splitt the total absorb?

Has anyone in here tried grabbing some more stamina from gems instead of going for all out mastery in blood?

I got put into a tanking role right near the end of firelands, and with the drops I have gotten, my mastery has gotten quite high (I'm at just about 28 mastery). While there is quite a bit of physical damage in Dragon Soul, there seems to be a number of encounters that have heavy magic damage and would benefit from higher stamina more than an obscene amount of mastery. So far, I have re-gemmed the majority of my green gems to pure stamina gems, just to have a bit more.

As I haven't quite gotten to hard modes yet, though, I am wondering if I am taking the right path. I know there isn't a cap on our mastery, but is there a level where something such as stamina gemming might be a better idea? for the normal content, the shields I am getting up now seem more than adequate, but it's something I could see changing in hard modes. Maybe a happy medium, such as what I am doing right now? Or should I go back to Puissiant gems?

Armory link: Beasticles @ Sen'jin - Game - World of Warcraft

NVM

I got curios during our Ultraxion heroic attempts. When I stayed in the twilight realm and got hit by hour of twilight my total absorb was around 85k-90k (without disc shields) and this is to low for ams and amz. The same happend to other dks in my guild during the encounter and all cast amz about 2 sek before hour of twilight hits.

Hi!

Is there any math done on the difference between << Glyph of Icy Touch >> and << Glyph of Death Coil >> on single-target fights as unholy?
I know Death Coil comes out on top, but what i am asking is by how much exactly.

An additional question while i'm at it;
The tooltip for << Contagion >> states that it increases damage dealt by diseases spread via pestilence by 100%.
Since, without the talent, they deal 50% damage when spread via pestilence i'm wondering if it's supposed to be a total of 150% damage or if the tooltip should be more like "increases the damage done by your diseases spread via pestilence by 25/50%".

You are confusing percentage and percentage points. With 2/2 Contagion, Pestilence-spread diseases deal normal damage, because you start at 50% (from Pestilence) and double it (which is what increasing by 100% means).

AFAIK that sort of question will be affected your healers and RNG. I would think its best to figure out what you are dying to and adjust based on that. If I were to stretch this to some sort of general rule, I would say stack mastery until you start dying in bursts (but know that 90% of you dying will be from your play).

I wondering would i be better off using Visage of Petrification or using Necrotic Boneplate Helmet to get my 4-piece set. Should i use the Necrotic Boneplate Helm and hold onto the Visage of Petrification in case i can get the tier shoulders.