Here is a goal: How do you polish baked polymer clay beads?

Which way makes more sense to accomplish this goal?

Options are:
(I). Use 400-grit wet/dry sandpaper to remove any blemishes or fingerprints from baked polymer clay beads..
(II). Use 40-grit wet/dry sandpaper to remove any blemishes or fingerprints from baked polymer clay beads..
(I).