I'm in a casual guild that is just starting Kara. There are a few experienced members who have raided and who know the fights but for the most part, it is new territory for us as a guild. We are taking things slow and learning to work as a team though since it not a static group, the members change from visit to visit. The guild has about a half dozen keyed tanks but is short on healers so there won't be any splitting into two Kara groups anytime soon so I will be working with different OTs from visit to visit. I might even be going as OT with another guild on occasion to learn the other boss fights and see how an experienced guild does it.
I am the MT in my guild runs but since I've only been in Kara twice now, I am not very experienced with working with another tank in the group. The first time we did Kara, I didn't have any issues with the way the OT was playing but last night I found myself getting irritated at the OT (different person from before) for taunting trash mobs off me when we weren't tanking separate targets. I haven't said anything yet but plan on talking tonight with the guild leader about the run and am not sure whether to mention it or not since I'm really not sure what most OTs do in situations where they aren't really needed to tank.
I want to know if there is an established etiquette on tanking trash when there is more than one tank in the group. Obviously mobs marked for a tank should be held by that tank (barring problems) but what about the CC mobs when it is time to take them down? On my first Kara visit, I did all the CC breaking and the OT only took aggro if I needed him to (bad debuff or MT healer mana issues) but last night the OT was breaking CC and taunting mobs off me after I took aggro lead on them. Should I just keep my mouth shut as long as people aren't dying or should I lay down 'guidelines' for anyone who OTs with me? I don't want to come off as a 'difficult' primadonna tank who has to have everything a certain way but I just think it will make things smoother down the road if we establish a regular method of doing things.