Great info on P pickups. At this point
I’m inclined to try the Aguilar’s, Lollar’s and Fender PV 63. I play flats only.
I would not recommend the Fender PV 63 with flats because that pickup is really bassy and punchy. Flats don't have much highs for starters so they are generally better paired with a pickup that has a fair amount of highs. With flats I would go with Lollar for vintage tone.