I've read at least one TB account of the Cobalts being the brightest & clankiest. Are my fears of using Stainless unfounded? (excessive fret-wear) I had some on for a bit w/o damage to the frets, but they were Elixir coated. Those things sounded brilliant with a pick, like the lasers in Star Wars, which was actually someone hitting a telephone pole guy wire with a crescent wrench. Are the Cobalts just as wearing on the frets as SS? Hadn't heard clank in a while & just did with RotoSound 66 Stainless. I like that sound, but I'm stingy about fret-wear.