Is the 100% cap before or after reduced ArP efficiency i.e. paperdoll or real value?

If you're hitting every death rune into a heart strike, that gives the 15% chance for a death coil. Also, with soft capped hit / expertise, you'll have enough room to launch those 2 death coils at the end of the rotation, making sotvh come out on top of sigil of awareness. Haven't gotten the sigil myself ): but overall on my parses, I have quite a few more death coils than death strikes, though death strikes do get that bonus crit damage :P

Are you including Abominable Might in your "6200" figure? Your uptime on bosses should be at or near 100%, so I'm curious if the methods used to arrive at 6200 assumed 6200 before or after Abominable Might was applied. This really would make a huge difference, as you can start stacking AP much sooner in T8 gear progression if you can include Abominable Might to reach that 6200 mark.

Personally, I have found 52/0/19 to be more practical. I know that on paper this spec is not optimal but from what I have seen (in Ulduar at least) my worms constitute a very small % of my damage and having that quick rune tap has saved my life a time or two.

I know, I know; if the healers are on the ball and all is well, I shouldn't need it. We are currently learning Yogg and when I am down there on my own it helps to have that quick health injection and sometimes I hit it during movement just to make the healers life easier. I think it's really the same philosophy as hitting cooldowns on Ignis. Using anti-magic shell etc isn't necessarily good for dps but it sure makes me an easier person to keep alive.

Some people take two points in epidemic to offset movement and loosen up the rotations a bit. I personally haven't had much issue with this so I stick to 1 point. MY point being that you have to find what works for you in your guild as a dead dk does no dps

I'm not claiming to put out the most amazing numbers but I do decent dps. Here's a parse Ulduar

Grim Toll was something like 39.95% pre-buff. It is now 49.7%.

This is no fixed value of AP where ArP > Str. The value of each stat varies relative to one another with each other and with every other stat. Stacking more crit, for example, will tend to make Str stronger relative to ArP because there are abilities that can crit that scale with AP but not ArPen. The idea that there is one AP number when ArP becomes better, point for point, than Str is ludicrous. The realtive strength of Str and ArPen will vary with gear, raid composition, and spec and should be evaluated on a case by case basis.

Considering switching points around in my 51/2/18 spec for Bloodworms. Currently those points are in Mark of Blood and Imp. Blood Presence; obviously Bloodworms would be a DPS increase over those two, but I'm concerned over whether the little guys will cause me any issues in regards to their aggro. Also, do they avoid the mountains of AoE somehow (passive avoidance?) or do they just curl up and die a lot? I am not a fan of pets in the slightest, especially ones I can't control directly, but if they're not an inconvenience AI-wise they're probably better than what I have those points in now.

I'm using the 52/0/20 spec with the bloodworms, and I haven't run into any problems caused by the worms. However, I OT all the multitank fights in the 10 man so I can only safely say for Hodir, Mimiron, General, and Yogg. Out of all these fights I'd think Yogg and Mimiron would be potentially the most precarious if the worms were to cause any trouble (proximity mines and green clouds in P1 respectively).

In the end, after getting the pure DPS talents in the blood tree, Blood Worms is the only filler talent that will actually give you more dps. Granted I get 80 or so on a typical fight but its better than 0 lol.

Pets don't trigger mines or clouds, so that's nothing to worry about.

To be honest, the only reason I take Rune Tap over worms is because it makes soloing elites and old content easier when you have a heal on command. Though, I do wonder if Blood Worms would do more healing over time and end up being more worthwhile despite AoE killing them in some cases.

That's partly my thinking as well. I currently have the MoB/IBP for similar reasons, but with the increased healing on the Bloodworms I wonder if it wouldn't work out to be about the same. My bigger concern with them is simply how often they're really going to be alive in a raid; if the don't have any AoE avoidance or anything I can't see them ever living more than a few seconds on most of the fights in Ulduar.

As tetracycloid's post says above you, "There is no fixed value of AP where ArP > Str." The value of ArP depends on all your dps stats, including how much ArP you have.

I don't even recall where the 6200 ap figure came from-- I think it was someone's estimate based on running the old version of the simulator. The point at which ArP becomes better than Str will vary from person to person, and your best bet is to run an extra long sim yourself to compare. The other point that has been often raised is that Str is still always your all-around best stat. In any AOE situation, Str is better.