Some of the most sort after Strat neck parts are the early versions, as these were made from special wood that has since been discontinued. The evolution of the Strat pickup, Strat body, & Strat bridge is an interesting story in itself, which can be found in the following article:-

http://www.adirondackguitar.com/fender/StratHistory.htm

Quote:-
“Musicians soon discovered that by carefully positioning the Stratocaster’s switch between settings, the signals from two pickups mixed and produced snarling nasal tones that redefined electric guitar sound. These unintended tones were reminiscent of a muted trumpet or trombone, but with the sting of downed power lines.”

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