Kapper, One other thing that I forgot to mention and no one else has either. Every time you make an adjustment to your tie-rods roll the machine forward or backwards several feet (15-20 ft. is sufficient) or just drive it a short distance, otherwise you won't be getting true measurements when you remeasure. The toe-in/tires needs to go to their relaxed state without the forces of the tire's rubber being moved laterally against the ground. If you measure the toe-in, adjust, and never roll the machine, and remeasure, you may think you've adjusted the toe-in the correct amount but you will probably find that you adjusted it way to much after the tires have rolled a few feet.
This is why I mentioned in my previous post that 1/4 turn of both tie-rods changes the measured distance of the center-line of the tires about 3/16 of an inch. Very small amounts of adjusting the tie-rods causes a lot of change in the center-line measurement of the tires when your trying to achieve a measurement within 1/8 of an inch. That is why the spec. for the toe-in is a range of, if I remember correctly off the top of my head, 1/8"-3/8" of toe-in.