So i've been sanding my kit recently, I usually sand until i'm not seeing significant amounts of material coming up as I make passes, but there are still noticeable machine marks along the sides of the body that don't seem to come off no matter how much I sand. I made the poor judgement call of gluing the neck and body before sanding so it's difficult to get an orbital sander in those spots, so I do it by hand.
Now that I'm not noticing much sawdust coming up when I sand I'm thinking of moving to the 220 grit, but those machine marks are still bothering me, is this really an issue or will my clear coat fill those small scratches if I leave them and continue sanding with finer paper?