Can I see how low action can your Laklands(particularly the 55-02) go? I'm not sure if mine can still go lower but even when my saddles are at the lowest, I still can't get it and will just buzz. My truss is tight already and was following the setup adjustment guides in youtube but I don't want to force it anymore. Just getting ideas/insights before I take it to a trusted luthier here in London.
Here's a pic of my bass:
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The first photo looks to me like the neck has a significant bow. The part of the neck where it meets the body looks relatively closer to the strings than the rest of the neck, which an overly bowed neck will create, and is likely the source of the buzzing due to the saddles being down to the deck.
If you press down your first fret and 17th fret on the B string at the same time, how much gap is there around the 6,7,8th frets and the bottom of the B string? It should be a tiny gap, business card sized gap at most. The truss rod being tight doesn’t necessarily mean the neck relief is right.





