Originally Posted by mrmills
The neck (including the truss rod inside) will only bow so much under a set of strings at normal tension with the truss rod slack.
Sounds more like you need to raise the bridge. Where is the buzz coming from? the lower frets or the higher frets?
The B string has buzz if you pay more than very lightly starting at the 3rd fret and working its way up from there. The E has a noticeable buzz around the 7th fret, and the G between the 5th and 9th frets.
The point at which it has stopped bowing is only with a very modest amount of relief. I've played around with the truss on my other 4 basses and never seen adjusting the truss 'give up' so easily with a regular set of strings. I understand the basic physics at work here, so if it was a 120,100,80,60,40 set or lighter I could see this happening.
This is a German Warwick 5 string with the ovangkol neck and wenge finger board if that matters. Its a 2007, which still had the slighter fatter neck than what they have now. I try to use Feed and Wax on the unfinished neck every few months.
If the neck simply won't respond to the tension of a standard gauge of a pretty stiff set of strings, is my only option to go to a higher gauge? If I was to leave it at a higher tuning for a few days could it possibly gain back some natural bow?