I built a small set of cabinets to augment a recent kitchen remodel for a friend. The current cabinets were recently redone with new doors and drawer fronts. They were spray finished and the lady has plenty of matching oil paint (Benjamin Moore if that makes a difference). I have a 10-12 year old Fuji sprayer that I haven't used in the five years since I relocated my shop. All my previous spraying came with lacquer or water based finishes. I have a couple of questions. The first is how long can I leave the paint in the sprayer between coats. It's a very small job, just the single small island and a half dozen new doors for her pantry, but my shop is not big enough to spread every thing out. The second involves whether or not the paint should be thinned.