A rotation can't have the Gargoyle in it. If you leave it out, you'll have the normal SS rotation. Your build is also not very good.

0 ArP is enough to do good dps. However, just like crit and strength, getting more ArP will increase your dps.

That number simply doesn't exist for any class or spec. Arp is ok now for Unholy, that's all you need to know.

I forgot to offer them before, but the set bonus EP values for the 14/0/57 PTR spec/rotation:

EP:	2T7	88.89
EP:	4T7	49.21
EP:	2T8	104.76
EP:	4T8	282.54
EP:	2T9	138.1
EP:	4T9	422.22
EP:	2T10	220.63
EP:	4T10	395.24

Making the transition to 4P T10 will be a no brainer.

Assuming you are going from the ilvl 245 t9 set to the ilvl 264 (hm 10/normal 25 ICC) set, you probably will not be able to drop 4P T9 for 2P T10, not until you have at least 3 pieces of T10. A tier and a half isn't enough to give you 200 AP from one upgrade (not two, since its more a matter of going from 4P T9 + 1P T10 to 3P T9 + 2P T10 than anything else. Thus you have to go from 4P T9 + 1P T10 to 2P T9 + 3P T10). It all depends exactly how T10 is itemized, of course, so only time will tell.

I take it those EP values were with a 3 SS per 20 second rotation?

Reaping would give you another, a glyph of disease build would give you another.
A glyph of scourge strike build would have 5 base SS per 30 seconds.

If you assume they'd make reaping worth it (a design goal) then that means that you're doing roughly 4/3, 13/9 and 5/3 times as many SS in the normal/GoSS/GoD reaping builds. So the 2T10 EP values for those builds would be around 294, 319 and 368. That's certainly a lot easier to get on one upgrade. Of course the whole analysis is rather dependent on the what percentage of our damage SS ends up doing, and what talents buff it.

Then again, if it's an ae heavy fight, you'll probably want to run with your 4 piece T9 for a lot longer.

14/0/57 would be 3 SS per 20, yes. Reaping would make it 11/0/60.

GoSS still isn't worth it, and GoD is GoD.

But, anyways, those EP values are obviously not set in stone. They are very preliminary. As it currently stands, Reaping is not worth it - if this changes, then the EP values would obviously change. Yes, Reaping is probably an intended talent, but it's not worth taking yet, so why act as if it was? If it was, then something would have to be different, and that something different would shift EP values yet again, quite possibly!

Those numbers are accurate for the time being, nothing more, and I didn't make any claims (and hope no one made any assumptions) that they were absolute.

Besides, I didn't put them in the OP for a reason ^^.

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As to Slacker, using Pest + DnD has been shown to be worth doing on as low as two mobs. The math, done by Bensch, is probably about ten-fifteen pages back by now, but a search should turn it up easily enough. You would be correct in you use, as Unholy.

This, however, does not hold true for Blood DKs. They require more mobs, as their diseases and DnD are both weaker. Thus your guild leader is right, so far as his spec goes. Just incorrect in regards to your own.

I just did the PTR Boss, have the combat log parsed, using the spec 17 0 54, dark conviction over necrosis (personal preference).

The SS numbers are rather impressive, the listed numbers = average, straight from world of logs (our logs are private, so can't link sorry)

Scourge Strike 9.1 % 4155.8 7173.2
Scourge Strike 8.4 % 2500.9 5447.9

The top one being the shadow portion, and bottom one physical component. With hit and crit respectively, 65% Crit for physical component, 45% for shadow component, the fight is very short though so the crit rate would be inaccurate, but its most likely based off of spell crit.

Also to note that the shadow portion crit isn't 200% yet, making it even more amazing.

Gear used Here

As an Unholy DK, DnD deals incredible damage in AoE heavy fights, enough to be your main source of damage without it glyphed (over individual diseases, but around half of what BP+FF+WP do together). You aren't doing anything wrong.

I'm assuming SS was buffed quite well in PTR?

Indeed, from the log for the shadow component it shows only 3% of the damage resisted (partial resists) so not that big of a issue, I thought it would be higher.

Can't wait to test it once the shadow portion is 100% crit though, assuming the numbers from my parse, your double crits will be averaging 15k, finally making it a rather big FU strike compared to the other specs

You fill those holes with HoW, Blood Tap-Blood Strike, Gargoyle, whatever else you need a GCD for.

Too many free GCDs is not necessarily a bad thing, but too few definitely is.