I know this has probably done many many times before and I think all I need is a few nods or shakes of heads as to whether as OT for Kara I should respec from prot to fury.
I specced Prot a long time ago and since then we have run with 2 prot warriors for kara (although sometimes I swop out for my lockthat was my main) and even though we are a little gimped it works and we normally clear kara in about 3hours 30mins in one night.
My gear has greatly improved over this time and the only upgrades I believe I need are from badge rewards (belt, legs, neck, ring) and shoulders from ZA speed runs which we are now doing. I have roughly 17k HP and 17.5k armor fully buffed and have MT'd all except Prince due to our normal MT being off that time.
I was therefore thinking of any way to help improve my dps when not needed to tank (in current dps gear I have about 1.8k AP and 28% crit iirc and last night on a heroic durnhold I held 580dps over the entire instance) and the only way I could do that is if I respec to either a hybrid or more probably just go full Fury.
So just after a wall of text all I am after is: if I respec to fury would I still be able to OT in kara (adds on pulls, netherspite etc) if I was specced to typical PvE fury. My one concern was not being able to build enough threat (no slam or dev)?
If you have the gear for fury already build up (1700+AP, 140+hit, 25+crit, some armor pen etc) you can do some badass damage with an OT prot spec (12/5/44). Can hit 1kdmg easily with those stats with devistate/WW/heroic strikes. Probalbly 200-250 more DPS as fury.
Personally, I have never, though, tried a true hybrid tanking/DPS spec- cant help ya in that respect.
Obviously Netherspite shouldn't be a problem, you have the beam to help you. If you cant generate threat fast enough, put yourself on the second kill target to build a threat lead before the dps rolls in.
I've off-tanked Kara full as full fury in my tank gear before. I cant imagine you would have any problems.