Originally Posted by
Squirl
You need 4pc. It's huge.
On Mannoroth, you died and missed a use of Vendetta+SR. The other rogue also got 4 additional Soul Cap procs.
On Zakuun, you should hold your last Vendetta+SR for Heroism; that's what the other rogue did. You won't get another use by popping it on CD, so delaying it to stack with other CDs is a gain. You also missed your second use of Berserking.
You should apply the same concept to every boss. Delay your CDs to stack with other things so long as you will not lose a use by doing so. Most often, this is done with your last use to put it in execute range. If your guild is smart with the ring, you can generally just mirror its usage with your CDs and be fine.
I didn't look at your logs too closely, but it looks like you're more or less playing correctly. Your Rupture uptime seems decent enough (could be marginally improved) and your Env uptime is expected to be around where it is without 4pc. Mut isn't that hard. Just get better gear and get a feel for when you should and shouldn't delay CDs.