When I play classical I read notes, when I play acoustic fingerstyle, tab; and when playing in jazz bands chord chart shorthand, rythm charts; I figure out lead guitar solos from ear/tab, because crazy guitar solos are insanne to site read from classical notation. From my experience each method has its own benefits towards certain styles, ei. trying to play complicated classical from tab gives me a headache, the notes are much easier; playing blues solos from notation gives me a headache so I just play by ear and chord charts for modal referances.