I'll take a swing and say I do not believe there is a "Fender true tone".
a '52 isn't a '54 isn't a '63 isn't a '69 isn't a '75 and certainly isn't a '09.
I prefer vintage frets on rounded necks because I like the feel.
Tone comes from the mojo trapped in time between the paint and the body anyways, not from the frets!