I noticed this in another thread - I bought my p-bass used and the middle of the pickups were angled up in the center BIG time. I grabbed a screwdriver figuring that equal distance from the top of the pickup to the string is a good thing and adjusted them flat. Should they be angled?
They should be adjusted how they sound good, and where they don't contact the pickup. There's really no hard rule about it. I've seen them come from the factory with a similar setup.
yeh when i bought my MIM P the pickups were angled up in the centre. tbh i reckon it looks better aswell.
Take a 2.5mm hex wrench and stick on the pole pieces. Hold down the last fret and adjust the height of the pickup, so they're about even. Make final adjustments using your ears. It makes sense for them to be angled, unlike j pickups sitting flat across.
It's to allow more uniform spacing to the strings. The fretboard is radius higher in the center and that allows the pickups poles to be more even. Just depends if you feel you can hear any difference or not.
They are angled for a reason. It balances out the sound so that your E and G dont drown out your A and D string. Plus its has to do with the distance of the string and the radius of the fretboard.