The map that Ckret posted on page 47 was based upon radar information provided by the USAF. The map is good through 8:12.
From what Ckret has said, he does not have anything in his "old" FBI file that shows the flight path (based upon) USAF information after 8:12. All he has is a map with a dark line drawn in and some times jotted down on it. I don't think he knows how the flight path on this particular map was derived.
It could have been assumed, or it could have been more than assumed... either way, it's not as accurate as the Jan 72 landing zone map based on USAF radar & analysis by expert skydivers.
Also, this map that Ckret has mentioned (and has been photographed by the Seattle PI) does not show a wild diversion off course.
(This post was edited by SafecrackingPLF on Feb 1, 2008, 1:28 PM)