Strongly recommend GHS bright flats! They are fantastic strings, I discovered them accidentally when I bought a bass strung with them. I now have them on my fretless jazz and the feel and sound simply remarkable. Smooth and easy to handle 40-100 I can't see myself changing and just ordered few more sets. Also strung my fretted jazz bass with bright flats and so happy with it that I now in the market for another jazz bass so I can string it up with DR Sunbeams for slapping. In any case GHS bright flats are IMO the best alternative to flat wound string I personally don't quite like unless on a precision bass.