OK - so we're ready to start shaping the neck:
Before I begin sanding with the grain, I take a long strip of 60 grit (a sanding belt is good too) and run it up and down the neck using a 'shoe shining' approach - this is effective for both removing file scratches and ensuring a nice rounded profile to the neck. Just make sure you sand with the grain afterwards with the same paper to remove any cross-grain scratches!
Shape the top of the headstock and drill holes for tuners, then sand everything down to 320 grit, ensuring that all scratches and marks from previous abrasives have been removed. Now to lay in some frets:
Once my frets are cut to size, I use a one hand ratchet clamp to squash them in. Before laying in the frets, pass a triangle file over the fret slots - this will help the fret wire sit better. While they are in the clamp, I put a drop of superglue in either side under the tang to hold them in place when they are filed. I start with one clamp on either end of the fretboard, going on to the next while the glue sets, then meet in the middle.
On to part 3!