Sounds like you found the string. The thing for me is that I keep getting basses and I keep going for strings to match each bass. It's really an art and a science.I like the RS66, but like the Power Steels more. Pro Steels I tried once on my Thunderbird and hated them. Really scooped-sounding. The Dunlop black box SS are interesting. I have them on my BC Rich Bodine and really like them. Tried another set on my Thunderbird and they weren't nearly as bright as the Power Steel, though I loved the stiffer feeling of them. They came right off.