The first coat (actually multipal layers left to dry) layed flat and took minimal sanding with 600. The second coat went on much rougher and took more sanding to get flat. I know that you can't get lacquer to flow out like urathane, but I know it can be put on flater than my last coat was. Now I am going to put in the last coat and don't know what was differant between the two. Do you increase or decrease air preasure, and do you thin more or less to get it to lay flat.