From listening to our melee, supposedly having shamans interrupting hurts more than it helps. Something about their interrupt being a shorter lockout than rogue/warrior/dk interrupts, leading to his casting the spell again before the other groups' interrupts are off cooldown.
This is correct. The problem with enhancement shamans earthshocking as part of their normal rotation and MM hunters silencing shotting is that inevitably you're going to have a situation where they interrupt a cast by accident a split second before the rogue/warrior/DK tries to kick, resulting in thier kick going off after the spell has already been interrupted, and the boss only getting put on 2 second lock-out instead of 4.
Most interrupts are 8 second cooldown, which is why you use 2 groups. 2 people kicking, each putting him on a 4 second lock out, ensures 100% that he will never cast when the otherr group's interrupt is on cooldown still,
As mentioned above, in order for a single interrupter to work in 25-man it has to be a rogue speced into throwing specialization (Fan of Knives and Deadly throw can also interrupt), and they basically can't DPS because they have to save all energy for interrupting purposes. You also have to be clever with exactly WHEN in the casting time you actually kick, basically alternating kicking at the start of his cast time and towards the end of his cast time, as I understand it.
There's really no reason to have one person kick except for that rogue to be able to say that he'd done it. Or, I suppose, if you have some whacky raid comp with a gazillion mages and only one person that can kick.
Don't forget too that if you are doing hard-mode general still casts while the Animus is out. Your kickers have to be prepared to Focus-kick with a macro that looks like this:
/cast [target=focus] Kick; Kick
They then need to position themselves in such a way so that they are in melee range of both General and the Animus, and have both of them in their frontal arch, allowing them to DPS the Animus normally, while still doing interrupts on general.
