[quote name='Grangur' timestamp='1367838681' post='2069992']
The only access point to the truss rod I can see on mine is the one in the headstock. It has a though neck, so it's not like you take the neck off and access it that way. So I'd be interested to know how you get to it.
[/quote]
The early Warwicks had a truss rod that could be removed by slackening/straightening the truss rod/neck and then inverting the bass or pulling the rod with a suitable tool, the rod slid out and could be reversed/replaced.