I've read so many things regarding sound and tone.......... I don't know if they'd be called myths, or what category they fall into.
Removing the trem cover from a Strat, removing the paint from the trem cavity, using almost-dead batteries in effects pedals, .009's vs. .013's on string gauges, types of woods, brands of tubes, nut material, fluctuation in wall voltage, slides made of glass, brass, bone........... these things I believe make a difference. AAMOF I know some of them do because I've experienced it. Enough of these things combined make a big difference. I removed the thick plastick-y goop-type finish from one Strat copy yrs. ago and refinished it w/ danish oil and stripped and tung-oiled the neck.......... I could tell the difference immediately, it had a more open, airy, acoustic sound, and it wasn't my imagination.
A lot of other "myths"?------I couldn't say, because my ears probably just aren't that good.
But, do I believe there are people who can see subtle differences in shades of colors that I can't see? You betcha, been there, done that.
Do I believe there are people who can tell if just a dash of one ingredient has been left out of a recipe, even though I can't taste it? Yep, it's happened.
So why should I say "this" or "that" makes no difference in sound when another person swears they can hear a difference?
I do what works for me, I play what I like, there are no rules.
If someone else says gold plated hardware sounds better than nickel plated, more power to 'em. Just because I don't hear it doesn't make it untrue.
Why spend time trying to convince them it makes no difference if they think it does?
I'd rather be playing, anyway.
Guitars
Wilburn Versatare, '52 FrankenTele(Fender licensed parts), Fender USA Roadhouse Strat, Fender USA Standard B-bender Telecaster, Agile AL 3000 w/ WCR pickups, Ibanez MIJ V300 Acoustic, Squier Precision Bass,
Amps
Ceriatone Overtone Special, Musicman 212 Sixty-Five, Fender Blues Jr., Peavey Classic 30, Fender Super Reverb, Traynor YCV-40 WR Anniversary w/ matching 1x12 ext. cab, Epiphone SoCal 50w head w/ matching 4x12 cab (Lady Luck speakers), Avatar 2x12 semi-open back cab w/ Celestion speakers
Pedals
Digitech Bad Monkey, Digitech Jamman, DVM's ZYS, Goodrich volume pedal