Will adjusting the truss rod help to lower my action on my Warwick Thumb 4 Bolt-On? I've lowered the action but my E string is still high on the end of the fret board. I don't think I want to adjust the Just-A-Nut. I recently played a new MM Sterling and the action on it was extremely low all the way up the neck. This was straight from the factory! Any ideas fellow Warwick owners???? Help!!!!