I checked the alignment on my car to see where it was, then made sure the toe was set at zero. The predominant feeling I get with zero toe is that the car feels 'busy' when trying to go straight on the freeway. I'm constantly correcting, the car likes to wander, doesn't want to go straight. It's just a slight tendency, nothing dangerous, only slightly noticeable. I've been driving it that way for about a year or more, it keeps me awake.