The long and the short of my question is this: can the Realist lose volume over time? I've been happy with the overall sound of the pickup, but I feel sometimes that I have to crank my amp up more than normal. Or if other people use my amp, they don't have to turn it up as much. Same if I use a different amp. I usually have to turn it up quite a bit. I was thinking about trying a new Realist, thinking that maybe it can lose volume over time, unless it's just my bass, but that doesn't seem logical to me. Any thoughts?