In my case, I found the PK neck too powerful & aggressive to get a nice clean sound alongside my other guitars.
It's not that I dislike the PK neck - it's possibly the best pickup for neck leads (especially if you sweep pick), but I use my neck pickup for clean sounds much more than for leadwork. My favourite is probably the Holy Diver, so if my amp's clean channel settings are dialled in for a nice tone with the HD, the PK just sounds like a foghorn in comparison :lol:
I prefer the balance, versatility & response of a Cold Sweat or VHII neck matched with a high output ceramic bridge humbucker. JMHO, YMMV etc...