I tried to disassemble and reassemble my neck pickup because it moves a lot, it looks lower and too much movable, unlike the bridge pickup.
The two middle screws of the neck pickup, left, are movable and keen on getting out of their holes. I've tried to stress on that on the picutres by moving them up a bit.
It looks like it's the screws with the springs that are supposed to press on something that raises the mic. But I didn't find anything that "raises" it when disassembling it. Like something to lie on and rise it. I didn't try to disassemble the bridge mic to compare.
Let me know if you need photos/videos or anything else.