A fair bit of sanding done, but plenty more to do. I think I'm going to have to stick with quite fine grits as the wood has a tendency to "fur up" a bit with heavier grits. The list of bits to do is certainly getting shorter and we can't be too far from the home straight
Anyway, a bit of magnetism...
The magnets are 3mm diameter and so was my drill bit. So after drilling to depth on the pillar drill, I sat and spun the bit by hand in each of the holes to create a little clearance, before setting them in with epoxy.
A handy tip was to keep the magnets in a stack, sticking a bit of masking tape on one end, then feeding them in straight off the stack into the body holes. Then, the important bit, sticking the tape on the other end of the stack before feeding them into the cover. Then they should all be North-South polarity. The flat end of a pencil was quite handy to press them in flush