Originally Posted by
FocusedFelix
What is your gear like, do you have 2/4pc? Are you using DemoServ or CR? Since you didn't post it, I'm gonna lay out the full explanation. I don't mean to insult your intelligence : )
Let me start by saying that normally, you'll be at 3.5 embers anyway. The only real reason to burn them outside of DS or procs is if you'd cap on the next Conflag/Incin. If you don't have your 2pc, then, yes; you typically want as close to 4 embers as possible right when DS comes up, or more specifically, if DS is ready and something has proc'd. After burning both DS charges over the encounter, I'll actually wait to pop DS again until I see my trinket weak aura pop up. (I'll start preparing myself when the CD icon goes away). The 2pc changes your stock from 3.5 embers to 2.5 embers since Immolate can and will give you them at the worst times. 2pc + CR means you'll need to be hella aware of what's going on when you have embers to spend. TLDR: You only cast more than one CB at a time under DS or procs or both unless you have your 2pc and the game is shoving embers down your throat. Occasionally you'll be at 2.5 only to get a 2pc proc meaning that you'll need to burn two CB's back to back to set your pool back at it's neutral level. Even if DS is ready, wait for something else as long as it's going to be ready in a reasonable amount of time; you don't want to lose out on overall damage from sitting on a DS charge for ages.
Your issue with GSR can be solved with the DS glyph, if you aren't already using it for fights lasting longer than 6m or so (so basically just not on Gruul). That way you're DS's line up more frequently with procs increasing your overall damage. You can pair that effect with Havoc and really do some sexy stuff.
I know Demo being the go-to ever since snapshotting was removed has been teaching us bad habits (*raises hand*), and Aff is literally a monitor UI spec now... but Destro is more reliant on outside elements effecting DPS than the other specs, so you may as well assume that you snapshot as Destruction (outside of the whole DoT SS dealio). Neither Aff nor Demo has a spell that you literally only want to cast during procs. Even though spells like Soulfire should only be used during certain conditions (Meta), you aren't sitting at 8 MC stacks with 900 fury waiting for a proc to unload your damage.
If you're using Raven or some other buff tracker for trinkets, stop and go get Weak Auras. The individual trinket/enchant strings are much more intuitive and are specific to the buff you're tracking. Can't tell you how many times I see new bars pop thinking I have a trinket only to see irrelevant info.