I was talking with a coworker today and the question came up about the black line on the salt. Movies etc show the cars following right down the line with markers further out to each side. Since I've only been going to Bonneville since 2000 the only way I've seen it has been the black lines and marker down the sides and nothing by white in the middle. So to the question: When, if ever, was the black line the center of the track?
The follow-on question is: If the black line was the center, when and why did it change?