I don't like the foam stuffing idea. Apart from the fact that it's a bit messy, somehow I fear that will kill resonance vibrating through the pickups. Didn't evh screw his pickups into the body for better tone?
I have the opposite issue: My pickups are straight, means parallel to the SG scratch plate, which is logical. But because of the neck tilt, there is a significant difference to the string angle. Anyone tilted their pickups so they become parallel with the Strings, and how do it?
Gibson should make the pickups with three mounting screws so you could adjust the tilt.