Before I start hand finishing a blade, I clean up the area where I'll be working, if not my whole shop. I put tools away, vacuum up all the dust that I can, and wipe down the surfaces where I'll be putting my sandpaper and sanding sticks. This is mainly to prevent unwanted abrasive particles from getting on my work, but it also helps to put me in the right frame of mind to do a job that shouldn't be rushed.
I've been trying to incorporate stones more into my finishing process, so I used a 300 grit stone (slice of a
King sharpening stone) to remove most of the grinder scratches. I'm not very impressed with how this particular stone felt, I don't think I'll use it again.
I soon switched to 320 grit wet/dry paper to finish removing the scratches left from the grinder. The sandpaper is cut into strips roughly the same width as the blade, with scissors that have been washed (I use the same scissors for many different grits).
I use this as a sanding stick. just a piece of micarta ground flat (also washed before use)
After sanding the rest of the bevels to 320 grit, I still had a scratch left in the plunge. I could have probably removed it with the 320 grit paper, but the sanding block just felt a bit too clumsy for the task.
I use a 600 grit edm/mould makers stone to get into the plunge. To provide the cutting action I use very small movements perpendicular to the scratch, sliding up the plunge like a ramp, until my hand cramps up. I really try to focus my effort right in the curve of the plunge, to avoid cutting a groove in the bevel just before the plunge.
I follow up the 600 grit stone with a 1200 grit stone. This is a slice of another
King sharpening stone, but unlike the 300 grit, this one cuts very nicely.
When I'm satisfied that the plunge scratch is gone, I go over the area with the 320 grit paper again.