I have had quite a bit of problems with my fretless bass buzzing. I followed to setup page and even took it to have it "professionally" setup. I think this guy was a joke but he brought up a good point. He say that the angle of my neck might be tilted back. He tried to suck in the bottom screws of the neck and readjusted it, that worked for about 2 days maybe. I've heard of people using shims under the bottom two screws in the neck plate, but do you think that putting a shim under the top two screws would work. I only have buzzing on the E string and it's basically when I slide. I've already tried raising the bridge and putting more relief in the neck and that didn't help. Also, has anyone tried communicating with Fender. The E string on my bridge keeps falling, the bass is only about 5 months old. Do you think that Fender would replace the bridge for free? Thanks in advance for your help, and Thanks for listening.