I understand that fender neck stamps indicated (vintage... say 60's) Model, month, year, width. With these being the model destinations : 3/4-Musicmaster/other 3/4 scales(?) 1-Jaguar 2-Stratocaster 3-Telecaster 4-Jazzmaster 5-Precision Bass 6-Bass VI 7-Jazz Bass 8-Mustang/Musicmaster II 9-Duosonic (? not 100%, but I thought this was right) 10- 11- 12-Fender XII 13-Jazzmaster/Stratocaster ('65-) 14- 15-Jaguar (66-) 16-Musicmaster II/Mustang/Bronco (24" scale-1966) 17-Mustang Bass Or something like that. But what is unique about each? Like why would a Mustang get a different neck than a Jaguar? Or a music master or a duo sonic... They were all maple/rosewood 24"... are there other differences? I understand tele necks are unique... But it seems like fender wouldn't have needed so many designations back then. Educate me.