I'm currently on the hotcoat stage of my board moving on to the gloss coat and wondering would it be better to install the fin plugs before or after the gloss coat?
Install the FCS X-2 or FACTORY plugs after the hotcoat then sand them down as you sand the hotcoat to 150 grit. Then put a piece of masking tape over the plug slots and screw holes so resin doesn't get in when glossing. You can pull the tape a few minutes after glossing using a razor blade or tweezers.