I used to run abit of toe-in or zero toe but I think it just made steering sluggish but stable.
I've read before that on fwd the driving torque pulls & flexes the wheels forward which induces some toe-in. too much toe-in would make it respond sluggish. so they should have abit of toe-out to correct the geometry.
now that I tried some toe-out, I like the +ve feel of it.