My preferred cap is pink dot. You can order a mixed pack to try them. Be wary of the 600ml cans they are high output and easier to get runs with them. Kilz original worked for me.

Here’s my painting technique. Light coat of paint, wait a few minutes for it to flash off. Repeat 3 or 4 times until coverage is achieved. Should be all done in 10 minutes. Let it dry for a day then apply the next colour.

I also don’t use sticky stencils so it gets a nice soft overspray edge.