Topic: easy z height adjustment.
I haven't done this, but I'd like to document the idea.
I'd like to put a slit on the back side of the case where the z height adjustment screw is, and have some sort of knurled wheel that press fits on the screw head that protrudes out of the back of the case. maybe even have some numbers on it or lines on it so you can see how far you are adjusting it.
This way you can get at it if the cover is on, and you don't need a tool to do it.