Great thread, and good looking paint job. I've painted several rifles/shotguns for myself and others, and would like to make a couple suggestions if that's ok.
I've found that some synthetic stocks do not like to hold Krylon very well. This is due to the mold release agent used in the material during the manufacturing process. In order to make the inexpensive type paints stick, sometimes it's necessary to coat them with a clear coat of a mold release inhibitor. This can be found at any automotive paint store and I'm sure other places as well.
Also, I like to use actual foliage from the places where I hunt as a stencil. It's amazing how well a paint job will blend in with the environment, when the camo pattern matches the foliage perfectly. I don't think the predators care, but it sure makes for a easy and inexpensive way to make the exact pattern of a Sword Fern, or a Cedar bough, Vine Maple leaf, etc. I've had people ask "who airbrushed that?" The look on their faces when I tell them that I did it with $4 can of Krylon is worth it.
Great article! Thanks for very educational forum.