Toe strings work well. Folks will argue their merit but nearly every race team in the world uses them. My car has been aligned with them too.

Seems like the tie rod end would be used to adjust toe.

Zero toe works for some cars but not others. Since it it within the stated spec it might be something to try. Most dealerships just get it within spec and call it a day. They generally don't care if it is positive on one side and negative on the other. I ask for it to be within a certain range and equal on both sides.