Well, I'm testing right now on a target dummy to see if it procs off of diseases. I'm not sure the best way to do this, so I've just been casting PS and IT. I did notice on one test, that Plague Strike appeared to proc drain life. There was no melee swing before the proc, the only thing that could've proc'd it was PS.

Is there a better way that I can test the proc rate?

-edit: And even if Bryntroll is a flat proc, wouldn't buffs like Bloodlust/Windfury increase the overall damage from the proc, due to more swings?

Well, that's interesting. Guess I'll have to see tonight in ICC if it makes a noticeable difference in dps. If these changes stay, then I assume this is Blizzards way of forcing us to move on from proc weapons like Nibelung and Bryntroll. Oh well, suppose this just gives me more incentive to farm 25 saronites now.

But honestly, I don't think this will have a substantial effect on our dps due to the relatively low number of times were cast our diseases during a fight. Not sure how I would go about calculating that, but based on what i think was removed from possible procs, here is what we lost:

In any given minute of where we apply disease every 20 seconds, we lost 3 chances from BP application, 3 chances from IT, and 3 chances from FF application. So in total, 9 procs per minute. However, at only a ~11% proc rate, we're only looking at an average of 1-2 procs lost per minute. Please correct me if I'm wrong, which would not surprise me in the slightest.

edit- Okay, did a test just now to see if Plague Strike would proc Drain Life, and it does appear as though it does. All I did was use PS, and when I saw Drain Life proc, I checked my combat log. Usually, it was a melee attack that proc'd it, but there were several instances where the PS itself would proc the Drain Life. So, the application of BP, IT, and the application of FF have been removed. Meh

edit 2-@Archnoel: I did the same test, with no Drain Life procs. However, I'm still wondering if DL would proc anyway if we're positioning ourselves so that melee strikes can't occur. Honestly, I've never paid much attention to the actual behavior of the proc. Without me knowing if it follows the same melee rules, i.e. facing, positioning, etc, I'm still unsure as to whether or not this proc removal is real or not. But, without a doubt, at least the strike portion of PS proc's it.

I was saying that there is usually no meleeing if the boss is moved during summoning (e.g. Putricide). If the boss is not moved, it's as I get it pretty random if and how much it melees. So, it is consistent. It would be inconsistent if the boss was moved during summoning and there is still meleeing.

Just looking at your logs you have 44 scourge strikes used and 48 blood strikes used. In a normal rotation your SS-BS ratio should be 2:1. Yours is more like 1:1. In an ideal rotation, you would have 54 SS and 28 BS for the same amount of runes. This would take SS from being 17.4% of your damage to being about 21.3% of your damage which would put SS above melee in your overall damage done.

So probably you are sometimes using BS-BS on the second half of your roation instead of SS which will have an associated reduction in SS as a percentage of your overall damage and with it an associated reduction in the relative value of the 2-piece T10 bonus. This is the area where theory collides with practice, a simulator never messes up its rotation whereas real people do and in some fights maintaining a perfect rotation just isn't practical.