Inside the Luthier's Shop with BigDGuitars.com. When I do something I usually test a lot of different options. I took that approach with swirling a guitar body. I wanted to make sure that I do it right document it for you guys, I grabbed about 20 different paints and I did vids of the best 4.
Here is a swirl vid of testors no borax in cold water: https://www.youtube.com/watch?v=VN6BWaEVWA0