Wet standing 120 grit works pretty good in between coats will save a lot of time cutting through the chase of getting it smooth as a babies booty P.S for me wet sanding you need to swirl the sanding block ,back and forward works good but the 120 grit will scratch also ,So you will need to swirl the sanding block for me when I get it cut down to where I want It then come back to 220 wet sandpaper prepareing for the next coat or clear-coat (I use no electric sanders All old-school lots of arable)