I always go as the Zidagar - out of sympathy.
I mean, the I's get paranoia which is kinda cool these days, and complicated misions - that river eels things was pretty cool. And big shooty ships,.The A's get to be reckless and have fast ships and wander about, but the Zid's get... to be drama queens!? Nice one with the cosmic karma, the Council must have had a real laugh with that one. Oh, and that Zidara ship they've got looks like some sort of a space melon.
So I generally go them... but I don't sing while doing the missions...
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Cognitive Development?