I have done two ;
In both cases I sanded the decks lightly with 2000 grit to remove any burrs or feathers . Just remember .If the deck mfgr. didn't plan for any changes in the thickness /part size ,you have to ! other than that I love them . Saves a lot of work on my part .I usually stain some with A mix of paints and thinners approximating the old " Humbrol " Color of " Deck Bleached Teak ". I use the paint thinned so much it looks like slightly dirty thinner . This does work though .If you are doing say a 1920s era tugboat for a dio ,they would,ve had wooden , oil and grease stained decks . Not to be aggravating , the paint chip is an old model ship deck that was molded in white and somehow I don't have the ship , but I have that deck with beautiful " Deck Bleached Teak covering every cranny of it .The nooks too ! Tanker-Builder Model - On ! !