1. I get a lot of hum out of it. Before it used to hum and it made a loud noise so when I took it to a Guitar Center tech he discovered a wire was not connected & it ended up being the one that goes underneath the bridge. Once that was put back the noise went away so the bass was grounded now. But it still hums when my hands aren't near the strings but it does go away when I lay my fingers on the strings. What's the reason behind that?
2. The nut seems to be odd. Especially for the G string. Are all B-50RS same? I had to raise the action because I was getting horrible buzz. I took it to another tech who was able to get the action as low as possible without buzzing but it's still a bit high. Could it be the neck is warped? Or in need of a new nut?
3. Would I have trouble finding the right size replacement for a pickup?