I have to side with ken 100% on this topic. The biggest thing for me as well is the notes. Great playing, speed & good intonation come from reputation and playing those same positions repeatedly for years, for me changing seems like a nightmare. On a side note, I've always been fascinated by harmonics (on electric) but there again they really mess with my head when I know this fret as #f or bG but for harmonics there can be two notes inside the same fret that differ from the fretted note.