I own Orig 60pup, SPB-1 and have play with CS62pup and GZR. My CV P got 63pup in it currently.
Orig 60P is hi-mid pup with lack bottom. But it truly woody sounding than other and open-airy tone. when i own it ,i use ECB81 and 7250L, the combination with those string produce harsh high and tame low. The output is well balance string to string. If i own the Orig 60P again, i will givie it a set of broke in Labella 760 flat or GHS 3050.
SPB-1 i bought on this Jan 2016 and sold on March 2016. This pup sound nice , classic P vibe and smooth warm tone. I have try Sadowsky Flat , 9050L and Labella 760FL on it. Sold it not because it sound bad, just i prefer my 63pup with little aggresive punch.
CS62pup really punch with some scoop , just the Hi is little much to my ear.
I feel scare to share my opinion with GZR in Talkbass, it is a Highly recommanded pup right here and got a huge amount of Fans ..... but she is not my pup.
Fender 63pup is thick lo mid present with tame hi. balance output with bigger sound than Orig Ppup. I have try the 63pup with 7250L, Sadow flat, Labella 760, ECB81 and fender 9050 . And finally i end up with 9050CL set.
It is not the best pup for every one, but for me, it is the P vibe i am looking for.