I'll second that Jay Don is a really great guy.
I'm a member of CAT and attend the meetings monthly so I can also vouch for the content of the videos. Find the one that deals with timber fishing that is presented by Paul O'Bier and you'll get alot of info that works not only for timber fishing but that can also be applied to brush piles or any other structure that you fish by vertical jigging. I've seen Paul give this seminar more than once and I still take away something new everytime.