I know this boss is (seemingly) very straightforward, and kinda embarrassed that we're hitting a wall on it, but I wanted to ask anyway. We can't help but feel like we're doing something fundamentally wrong on Primo 10HC after an hour or 2 of attempts this week. We had put in an attempt or 2 a few weeks ago (prior to hotfixes) and got decent progress, but it feels like we can't get a good footing now. Our raid DPS, which is usually pretty competitive, seems to be really suffering; this largely seems due to lack of transformations. Normally EVERYONE is able to get transformed and keep or quickly refresh throughout the fight. However, on this week's attempts, we were struggling to get even 3-4 DPS transformed and tanks never got more than 3-4 stacks. By the time Primo got to 7 stacks, we were ~45% and damage began to get overwhelming (or so it seemed, maybe because healers had no stacks?) so we got a bit discouraged.
Raid comp options:
Prot pal (Me), BrM monk
Lock, Lock, Ele/Restosham*, Rogue, Holy/Retpal*, DK, Hunter, Disc/SPriest/Mage*
We tried 2x disc/MW heal set-up to get some more offense via healers, but their smites were kinda weak (obv), so maybe better to not run 2x disc? We tried them on big adds for full dmg/atonement, but tanks don't really need any help on big adds TBH, and little adds were the real problem. We tried dedicated ooze killers (one lock, and/or DK), as well as a "DOT ALL the things!" approach, but never seemed to have enough pools up. I know our tanks can both do monster DPS, so it really hurts not getting transformed for them, but right now we're struggling past getting our Rog fed 5x to just sit on the boss.
We tried assigning lanes to kill, but seemed to fall more behind, so we ended up trying this: Boss on left? Kill adds from the right. Boss on right? Kill adds from left. Boss would be moved based on black ooze spawns. Those were our best attempts, but still not good.
Any help, tips, call-outs, or suggestions would be greatly appreciated!