The fernandes bass arrived and it sounds great, but the neck had a huge bow in it and the action was like 4mm! I started cranking the truss rod until i couldn't move it easily anymore and the action was none lower (with the bridge saddles already as low as they go). I kept on moving the truss rod with as much force as I could and now I believe the neck is quite straight, and the truss rod will not move anymore.
The action is still a little high with no room to lower the E and D saddles. I am thinking it needs a shim?
I also did check the nut which looks original but the action is quite high there, when I put a capo on the 3rd fret, there is plenty of space under the 1st fret where as all my other basses and guitars look to have almost no gap there, so I might need to lower the nut as well.
All in all, for what I paid, and for the sound it has, I'm pretty happy! I already used it at rehearsal and I like the pickups, they read 13k!