That was a good article, Ian. Thanks for that.
A number of years back, I bought a compressor for using my air tools and spray guns as a plan to touch up my airplane after modifications and repairs. I painted a 1940 Ford pickup in the hangar with it and came out quite good. Then, when it came time to touch up small repairs and sheetmetal work from converting the airplane to a taildragger, I did it with Preval sprayers because they were easier to work with. LOL. For a large project, I'd still use a sprayer but for something the size of a guitar, naw.