My 1988 AVRI is due for a fret job (and possibly a new nut). I contacted my tech and he was asking if it was "sideways fretting" as he knew some, as he called them, early Strats had this type of fret installation. So, my questions are: 1) What exactly is "sideways fretting"? Is it simply frets installed from the side? (I assumed they were all installed this way!) 2) YouTube research says sideways fretting was used up until the 80s (seems vague to me), so would my Dear Ava (1988 AVRI) have sideways fretting? Thanks for entertaining my questions of ignorance.