Is it possible to use the toe plates for the purpose of measuring with the dial indicators? I'm not seeing how having the tire/wheel on or off will affect or change the measurement. Personally, I don't want a garage full of alignment tools. Also, is there value in comparing the graphs to the direct measurements. It seems to me that the direct measurements would help you to translate the graph. Can't seem to find what a perfect graph would be. Don't remember seeing anything like it in other literature to compare. WEK.