Professional guitar & bass maintenance, service and repairs.
Along with the fact that this bass had sat for a length of time and was covered in grime, the neck had developed a massive nut bow and twist. While there wasn't much I could do for the twist (and Warwick says that a slight twist is normal in these neck) the nut bow made the bass unplayable.
The neck sat in a jig for about a week before it could finally be strung and setup within factory spec. So, with that, the brass frets were polished (and look absolutely killer), fretboard was scrubbed and oiled, the body cleaned and waxed, and a full setup was done. Was a labour of love and worth it since it now plays like new.