I am a semi-pro musician.  I play a hybrid finger-style using a flat-pick and steel finger picks.  My primary guitar is a 1982 Taylor 555.  I found these strings to be utterly disappointing. Dull sounding with a very stiff and unresponsive feel.  For "light" gauge strings, they required an awful lot of torque to get them up to concert pitch.  So much so that it raised the action noticeably.  If my Taylor had been strung with these strings when I was shopping for a 12-String, I would have passed this outstanding guitar over.