I've not been able to do a bwl run since patch but i'm discussing right now with my fellows chaman about the use of the healing stream totem on encounters such as Vael or Firemaw (for rogues groups especially).
Now that the healing stream totem ticks for 25 hp ( average BWL geared chaman ), is it worth +60 FR on such encounters ? With a shadowpriest with démonic embrace this can be pretty sweet.
Ummm Healing stream is still useless, keep mana spring or tide down. Patch just made it slightly less useless.
When you take a look at resistance equation 60(depending on your base as is) can actually be a good amount to add to reducing you can figure on average it will help absorb at least 30+dmg prolly upward to 100per(figure you have at least a decent amount). The resistance would be greater than the shitty 25hp per tick.
Let's just put it this way, on Firemaw at least:
Firemaw's Debuff: Increases Fire Damage taken by 150/300/450/600... etc.
Also does 139-161 fire damage.
So, the first unresisted Flame Buffed does 289-311, followed by 439-461, followed by 589-611, etc.
I generally wear enough FR to resist about half of them, with the FR totem down I could get to enough FR to resist the full 75%.
The time I spend in and out is not, in fact, dependent on how much HP I have, but on how hard the Debuff is hitting. If it's hitting for more than, say, 1/4 of my buffed HP (4623 in my full FR gear), I'll go out and bandage and let the debuff reset.
Your 25HP/tick won't make up for resisting even one more Flame Buffet over the course of the fight with an FR totem, it might reduce the downtime while your rogues are in resetting the debuff a tiny amount, but not nearly as much as the FR would.
That is probably one of the worst scenarios for your suggestion and it would fail ten times worse than it would at Firemaw in my opinion. The raid is taking large amounts of fire damage across the board, the fire resist totem would be vastly superior to the healing stream totem. Don't even mention Huhuran :D
Basically in any fight where resists are of any importance, healing stream is out of the question.
The only fight I've seen any use out of healing stream is on Arlokk in ZG.
Between Healing stream and Stoneskin (omg it has a use!) the panthers hit for even less. Its also a pure physical fight so Amp Magic is pretty sweet too.
On flamegor you could probably make better use of healing stream totem, especially if you already got heavy +healing. The totem isn't very strong though, and generally would only be used in melee groups to mitigate minor aoe/environment damage. Caster groups will simply benefit more from mana recovery - generally even warlocks (less time wasted tapping).
I use healing stream in Razorgore (we use the kill all strat). I watch my mana usage pretty carefully there so as to not absolutely require Mana Spring (I'm usually in a group with a warrior and rogues anyway), and it's a godsend, quite frankly. Keeps the healers from pulling any aggro at the start, and by the time they are free to heal we are far enough into Phase 1 that it's moot. My whole party pretty much stays topped off.
That having been said, based on encounters mentioned up above, I would almost never trade Healing for FR. And yes, Stoneskin helps now, especially those squishies.