The question is in the title. I've checked all Sith Raid related guides and when Barriss is needed in a team, they usually put her zeta as being a requirement too.
Now when doing T6, I felt that the enemies are not crit'ing that much to be worth spanking a zeta on her.
I use Barriss in a RJTz L, BB8z, R2D2zz, ScavRey, Barriss.
Thanks for your help!