Brush paint them.Thats the way they were painted.Everyone in the model world think they were painted perfectly that the Contest Judges use hand magnifiers to inspect them.Thats I.P.M.S.for you.I have talked w/ww2 pilots that survived the war and they agree w/me.I recommend that when it comes to white,use the Warhammer line -flat skull white.It brushes good after a couple of applications.