I'm still trying new strings to see if there's a contender for my TI's, so I bought some La Bella Copper White Nylon. I put the E on and the volume compared to the A, D & G TI's that were still on the bass was astoundingly LOW. It had about half the volume. Sustain was fine, but I just couldn't believe the difference. I made sure the string wasn't twisted and that wasn't it. I don't think they're for me anyway. I didn't like the overall tone and feel and am sticking with my TI's. But I want to sell them since I don't need them and it's a brand new set, but I want to make sure that there isn't something wrong with the E before I do that. Thoughts?