Cut the mast holes thru the decking, then give the decks a thin coat of
varnish or lacquer, the purpose being to prevent any deep soiling of
the wood while the model is worked upon. Do not allow the deck to have
a shiny finish. If so, dull it with fine sand paper. The plank lines
may be emphasised by rubbing on an oil base color (black) then scraping
off excess, but you will probably find that the varnish which fills the
lines gives sufficient definition. On some models plank lines are
glaringly over-done.