We poked heroic spine a few times with barely any prep. I lamely pieced together a macro to save a second or two on damaging the tendon (below). I plan to stick some other pet abilities in there.
It seems that there isn't too much specific that ranged DPS needs to do. Burn the tentacles quickly in order. Nuke the bloods when we're gonna flip. Drop the almag and free the grip right as it happens... but time it so the almag doesn't reveal the tendon too early. Then burn the tendon with as much crap ton damage as possible.
/target Burning Tendons
/cast Hunter's Mark
/use Kiroptyric Sigil
Is there anything specific a hunter can or should do?
See here for a macro.