Only Traitor Companions Stats

[Maldo Straken [FR]]

what's the point of each stat ?
Sociabilty give what ?
And what about medic ?

[Pokr]

Crafting is related to the amount of items it takes to craft something.
I think medic is related to the amount of healing, when you're driving the car. You see, there's a button named heal out there, and when you hit that button different companions give different healing points.
And sociability...I guess it's something about whether the person is talkative, like, Brandon, who owns the hightest sociability, he gives a lot of information.
Just finished the game with Brandon on my car all along, and did not try with other companions. Sorry if I'm wrong :P