Okay, so we know how far the tracking lines go an their thickness. We also know that the middle line diverges when it reaches the red/blue scoring zone. The problem, however, is that neither the rules nor the field drawings tell us the angle of this divergence. Has anyone found it? We want it so we can turn accurately once we hit that point.
You should be able to work it out from the drawings. You know the X position of the start and end of the angled section from the details and main drawing on the last page of arena layout and marking. You know the Y position of the long straight section from the same drawing. You can work out the Y position of the short straight sections from the field drawings, since they’re on center of the vertical posts. From there, it’s all geometry.