Use an un-thinned paint proper out on the can for this stage. The thicker paints will not be as transparent and will look bolder. I exploit a little brush to apply a liberal coat of burnish on two or a few depressions at a time. Then using a cotton rag http://josueeicqe.blogdon.net/detailed-notes-on-polyurethane-over-painted-cabinets-14093686