We would suggest the soft Flexpad
for a gloss coat sand out. Start sanding with 320 grit, then move to 400
wetsand and up with whatever grits you'd like. The each successive grit
removes the scratches left by the previous
grit. For a super mirror-like gloss
shine you'll want to wetsand with each grit from 320 up to 1500, then use
Greenlight's specially formulated Surfboard
Compound and polish.