War DPS rotation question

[Bashum]

Hi folks, I searched for this specific question, but only found general info on openers. I think my opener is relatively solid, this is specifically for fights like Thordan EX, where you do not need to mitigate anything actively for some time, so the use of vengeance or RI is fine.

my starting opener is :

HS->BS->maim->eye->HS->SS->BB->potion->HS->IR+zerk->cleave->infuriate->cleave->RI->maim->eye->HS->SS->BB->fracture->cleave->pacified (second brutal swing in there whenever it's up, forget exactly where)

So question 1 is: can anything in there be improved? and the big question number 2 is:

After pacification comes off, obviously infuriate, berserk, and inner release are now all on different cooldown timers. Is it more optimal to save zerk/IR for when infuriate is back off cooldown? or should IR be used the instant it comes back up again?

Again, this is assuming fights where I am offtanking and maximizing dps only. Obviously with incoming tank busters it will be different.

Thanks in advance!