Hi Malcolm,
I uploaded the video that Sumner took from the flag stand on the back straight. In the video you can see the Oak Tree turn and the entrance on the straight. Toward the end of the video you can see Number #9 coming out of oak tree in a chain of Miatas with an RX7 passing. I don't know if that is me or Mark driving #9 at that time since I am not sure when the video is shot.
http://www.gt40s.com/images/movies/number9ontrack.AVI