All good on this, it's a good discussion. It's hard putting it all back together 50+ years later. It just comes down to whether or not he made an amateur type of mistake. If so, that could be used as part of the profile when looking at a particular suspect.
Anyway, here is the latest from Dr. Edwards....he's on the hunt for those Air America jumpers:
https://www.goodreads.com/author_blog_posts/24695578-d-b-cooper-and-flight-305-last-name-unknown