I'm mainly having trouble with my bridge. I have bridge adjusters so the feet turn. No matter how much I measure I can't seem to get the feet aligned, the bridge perfectly parallel, and the bridge perfectly centered between the two notches. Perhaps I'm trying to be too precise and a small amount of variation is okay? Is this one of those things where I need to take it in to a luthier to get it set up properly? If so, how long does it typically take? How much might this cost? I've never actually owned a bass (this is a school bass) so I'm a bit clueless.