I suspect a lot of how Robert hears things can be very similar to something like car engine/exhaust sounds I can hear and tell as far away as ears can hear without seeing. I bet a good number of us old timers know what I am talking about.
1. 1960-1980's VW Beetle
2. 5.0 Mustang
3. V8 Chevy
4. Any US Mail Jeep, I know the mailman is coming 5 minutes before he gets here.
The combination of woods, pups, neck (scale lengths) head styles (single row no angle straight string pull, vs 3x3 sharp angle, strings splayed to offset machines, and even type of bridge can all color the overall tone of a guitar.
To me, I will toss aside the Gibson geometry,,,,,, and simply pose the difference between 2 Fenders such as a Strat vs Tele. As similar features are contained within, certain differences make significant difference in sounds. To me, the Ashtray bridge and pickup spacing etc all add up to it being ice picky, and even quackier than the Strats, Robert wrestles with.
I have never played other Fenders like Broadcasters etc, so no clue of their properties. Another curiosity I have is what do reverse neck Strats sound like vs Standard direction ones?
I will leave it at that,,,,,,,,,,,,, Robert hears Nuances, I do to, but not as in tune or able to explain the factors that cause them as he might be.