And what exactly does Violetta's brain do to Rex? Just his running speed or does it increase attack speed aswell? If it is just the former, it seems pretty pointless as far as i'm concerned.
I've already upgraded ED-E with the BoS armor upgrade for the 20 DT , not sure if that was the good option. He can use Alien power cells anyway, so if I need firepower, I have it. I never got the option to upgrade ED-E with Followers technology, which svcks because I liked that upgrade more.
Not sure which secondary companion to stick with. It was Rex in the last 2 playthroughs, but maybe I should give the little robot a go?