Der Guide ist wohl recht gut, aber was mir aufgefallen ist, dass deine ArP Berechnung leider falsch ist. Das Hard-Cap ist auch für DKs bei 1400 ArP.
Ich verlinke mal 2 Post dazu aus dem Elitist Jerks Forum:
Quelle: Krieger Forum
Q: Doesn't Sunder Armor mean you only need 80% ArP?
A: No. Sunder/Expose Armor and Faerie Fire work separately from ArP. You want your ArP Rating, Battle Stance bonus and (if you use maces) Mace Specialization bonus to total 100%.
Quelle: Feral DPS Guide
Topic: Armor penetration rating
Armor is a stat with diminishing returns. Meaning: the more Armor you have, the worse it gets in terms of damage reduction percentage. The first 1000 armor are far more valuable, than the last 1000 armor. That is the reason, that ArPen scales better than linear. When you have only a little bit ArPen, you reduce your target's armor only a little bit - but we know that the last 1000 armor are not
that important. But if you manage to gather more ArPen, you will reduce your target's armor more and more, which gets more and more valuable.
Short story: ArPen scales better than linear - the more you have, the better each point of it becomes.
At about 400 - 500 ArPen, ArPen becomes the best stat
The exact amount depends on your gear (especially the trinkets). Use RAWR or Toskk to find out, when exactly ArP overtakes Agility. Also remember, that the value of both is very similar at that low lvl of ArP. The difference is extremely small and only gets bigger, when you gather more ArP.
As soon as you can reach these numbers, regemming all Agility gems for ArP gems would improve your DPS.
Our goal is to come as close to the ArP Hard Cap as possible.
And now it's time for mentioning the three ArP trinkets currently ingame:
[Grim Toll]
[Mjolnir Runestone]
[Needle-Encrusted Scorpion]
Wearing two of these trinkets is quite useless since they have a significant shared uptime and then there would be ArP wasted (assuming you've got some ArP on your gear). The goal is, to reach the ArP soft-cap. Soft Cap means: you have exactly 100% Armor Ignore when your trinket proccs.
ArP Soft-Cap: 722 ArPen, if wearing [Needle-Encrusted Scorpion]
ArP Soft-Cap: 735 ArPen, if wearing [Mjolnir Runestone]
ArP Soft-Cap: 788 ArPen, if wearing [Grim Toll]
For clarification, I will try to explain this. Let's say you don't have one of the two trinkets and x is the ArP on your gear (and with Hearty Rhino, the +40 ArP food buff):
x < 400 -> Agility is the best stat, gem for it
400 < x < 1400 -> ArPen is the best stat, gem for it
1400 < x -> Agility is the best stat, gem for it
Now finally Grim Toll drops off Gothik the Harvester and you are lucky enough to get it!
x < 400 -> Agility is the best stat, gem for it
400 < x < 788 -> ArPen is the best stat, gem for it
788 < x -> Agility is the best stat, gem for it
Just replace your soft-cap with 735, when wearing Mjolnir Runestone instead of Grim Toll and with 722, if wearing the Scorpion.
If you are wearing a lot of ICC items and manage to get about 1000 Passive ArP, it's better not to wear one of the 3 ArP Trinkets and instead going for the Passive HardCap!
Für den DK müsste man wohl einfach aus Beweglichkeit Stärke machen und es sollte stimmen.