treble is your friend. treble can't be added to passive transducers in passive circuits, only removed. all passive pickups are born with the maximum amount of treble they can deliver. the instant a pup is wired direct to a jack, some amount of treble in the signal gets "lost", and then THAT is the max amount of treble you'll ever hear from that specific pup. remove the leads from the jack and wire that pup into a switch, a few pots, and a "tone" cap (aka "mud cap", because all that a "tone pot" can do is shunt treble to ground = "mud tone"). now lots more treble has been shunted off and out of the signal path, even when the "tone pot" is on "off" (which is why some of us make tone pots into no-load tone pots). the rest of the tone pot's "tone" is in the metered value of the cap used, and how YOU perceive how the resulting signal sounds throughout the sweep of that pot's wiper.