So I was using my teacher's bass, and was always curious as to why the space between his two pickups was filled by something. I played on it and it felt pretty good. He told me it was a technique that a guy used...I forgot his name, but he helps with low action so your fingers don't dig into the string too much. Anyway, I was wondering if there was a temporary way to do this technique, so I can see how much I like it. I'm willing to be creative on this one. Anybody have any ideas?