I had added a J pickup in my SP5 that I sold. I first went with a FDV and then swapped it out to a P-Tone. If I were to do it all over again, I'd probably go with a Super Fatty II, just based on how the SF1 sounds on my older SJ5 (P/J). It sounds thicker and fuller than my SP5 did. Then again, the pickup placement wasn't the same (P closer to the neck and J in the 70's position on my SJ5).
