Been putting it off forever, but finally did it. Bought the copper adhesive tape from stewmac and finally had an hour to get it done. I have a 1985 L-2000 and it would buzz like crazy. To the point that I couldn't use it for recording sessions because the background noise was too distracting. Of course, it would pipe down if I touched the knobs or the strings, but that wasn't a real fix. It was a lot easier than I though. My big worry was that I'd have to pull everything out of the back of the bass. Luckily, there was already a copper plate right behind the knobs. All I had to do was line the edges of the cavity and the bottom of the cover. I also lined the pickup cavities and took off the bridge and lined that too. Took about an hour and now I have a dead silent bass. If you've been putting it off, just do it. Doesn't take that long and solves lots of problems.