Hey, an old fart who loves unpotted pickups here!... ;-)
I don't know if it's what you've played but these last years, PRS has advertised "TCI" pickups, IOW "Tuned Capacitance & Inductance" transducers.
Users seem to think it makes a difference:
https://youtu.be/GZrQULkbx48?si=fYWcbhH-aYrPzP1S&t=420
Personally, I don't know which PRS guitars host these PU's and I've not analyzed what is behind the "TCI" thing but I see two potential explanations about this:
1)PRS has found a way to obtain a consistently low stray capacitance from coils by playing with winding patterns/tension and/or wire insulation... which makes coils brigther and more "alive", with quicker and higher transients.
2)PRS has decided to release their own version of DiMarzio Dual-Resonance, which allows to obtain secondary resonant peaks "tuned" for more sparkle (but also narrow dips in the high range, allowing to avoid high pitched squealing if located at the "right" frequencies).
Low stray capacitance is more often found in hand wound coils but some winders claim to obtain it from machines programmed to scatterwind (Kinman comes to my mind). Non potted coils are also less capacitive than potted ones, BTW.
Dual-Resonance is present beyond audio range in potentially all pickups, especially those fitted with 4-conductors cables... but it's possible to shift it down in the audio range and to take advantage of it sonically, by manipulating parasitic capacitance. DiMarzio uses different wire gauges for that but there are other ways (that I won't evoke here).
FWIW.
EDIT - DiMarzio 36th do exhibit a STRONG comb filtering effect due to asymetric capacitive loads IME... but I had mixed feeling when I've tested them (there was a high sharp secondary peak around 11khz generating a very irritating "drone" effect in the hi-harmonics, as lab tests would confirm it a bit later; through a Twin or JC120, it was absolutely painful to listen).
