Thanks for the tips guys. The de-grease product is what I needed to understand. I have done a few plane paint jobs. My preference is
Stitts Epoxy primer and in past I have used the Stitts polyurethane.
This time Im going to try the Randolf polyurethane. The Stitts stuff
is so thin, the margin between too little & too much is tiny.
Im also going to try vinyl paint masks for some of the shapes. No one
in Sacramento uses them (auto shops) so I will be on my own.