Luthier Super Carbon 101 MT Classical Guitar Strings, Treble Set
[Set SC101 MT Trebles | 3801675]

I've tried Luthier trebles over the years and they have been disappointing in that they intonate flat for each higher fret (especially the 1st string). This appears to be a consistant problem. They are a fine string (for Flamenco) if you stay below the fifth fret.