Originally Posted by
Nestar
Dot uptime can use some work. You're letting both fall off before recasting more often than not. Even for 1-2 seconds, it adds up throughout the fight.
Your time between Mind Blasts is excellent, and you're making sure to use 3 orbs every time for Devouring Plague.
Likely the cause of your bad uptime however, is the priority you're putting on the FDCL Mind Spike proc's. You appear to be using them ahead of refreshing dots, often letting dots fall off in order to use the procs sooner. If you look at where the 'Surge of Darkness' uptime appears, it's almost dead on with the gaps in your dots every time. These should be used almost elusively as a Mind Flay filler. (or perhaps in the more rare situation where you need to be doing something while moving). Even with putting dots ahead of these procs, you'll find you almost never lose stacks of it (the buff lasts fairly long as is).
As you mentioned, your gear shares a use as healing spec. As such not a lot of it can be changed. I'd recommend starting to build a seperate set of gear, even if it means choosing a lower piece for use in shadow (463 instead of a 476 or whatever it may be) just so you can start reforging properly and making sure you're not wasting stats by going over hit cap and such.
Not as much dps fixing, but I did notice you used halo on maddening shout every time. Something you may want to look at, is if possible, ensuring as much of your group as possible is within range so you can use a mindsear instead. It will likely cut down on a lot of healer strain during those few seconds. I noticed the other shadow priest was dotting people with SWP :|
In our group we generally have our 4 mages break the effect solo. Not everyone, (its only a 40k effect after all) You did an average of 40k by yourself with halo, on top of what the ret pally and dk did. If done well, you can usually find yourself in a good placement to hit most of the group with a halo once the effect is broken, and do a good amount of healing with it as well.
Recommendation for improvement: Make sure you have yourself a good dot timer (even one that shows dot ticks or latency). Then go hop on the target dummy's in vale and try it out. Start with 1 target until you can be sure your dots aren't falling off for a few minutes at a time. Then make it harder, Add only SWP on a second target, then do only VT on a second target (for additional FDCL Proc's) Then do full dots on both. Once you can do it confidently here, your raid ability will improve as well.