Hi Folks. I'm a new user but have been reading and getting good advice from Talk Bass for years. I've searched this topic but did not find what I'm looking for so hear goes: What is the benefit (if any) of a 5 piece neck vs a single piece neck? also What is the benefit of (if any) of a dual truss rod neck? I ask because I recently purchased a bass (Traben Array 5 Limited) that was not set up very well. I think it is a Vietnam made instrument and I understand that perhaps the quality control is not so good there... Anyways I put on new strings and set it up and went to tweak the truss rods and found that the lower rod is sticking up further and is more loose than the top one. I gave them both a tweak to take a little of the relief out of the neck and the top one seems normal (I've been doing my own set ups for a while). The lower rod turns but the wrench turns back against the string tension above the nut. So I feel like I didn't get a very good adjustment on that one. The neck did adjust. the relief did lower and this thing plays and sounds terrific considering what I paid for it (~$200). Should I be concerned about the truss rod? I don't want to end up needing to adjust it again over time only to find out I can't. What is the best way to tell if the rod is broken stripped or something else wrong? Thanks for the advice. Both on this and all the other issues I've searched on here over the years!