I'm not sure of anything. I'm pointing out that the map with the green lines and times have an entry at 8:17 close to Pearsons field. either they missed the plot on the radial or modified the location switching two points.
They cut the radial turn out. a cross is there but they placed it at Pearsons and bypassed the radial turn making that the 8:18 time with the next cross..kind of what you are trying to do..