To get any semblance of a volume balance, the stock (identical spec) bridge position pickup had to be almost falling off its height adjustment screws. Any plectrum contact and it wobbled. The impact would be transmitted through my amplifier.
Getting on for ten years ago, I read in a magazine article that PRS fitted SP90-3n pickups in the bridge/Treble position of their McCarty Soapbar model. I decided that this idea had to be worth a try. First, on my LP Junior Special. Then, on my Goldtop.
It should be noted that I set this pickup considerably further from the strings than i would set, say, an SP90-1 or a Gibson P-90.