X3 on the thickness of the paint. What paint are you spraying? I mostly use Auto Air (and some Wicked) these days and haven't run into any issues using stencils, other than I struggle mightily making them! For a particular pattern, I use a set of 4 stencils, two for each side and they overlay each other. I generally spray the base coat, heat set and then let it sit for at least a couple of hours before proceeding. I can then spray, heat set, swap stencil, spray, heat set, flip and repeat. My biggest problem has been not making sure the paint on the stencil is dry and then getting smudges on the lure. Haven't had issues with the stencils lifting the paint.
David