Yes,
Body work is indeed at dark art, something that is mythical and impossible for most mortal men.........well, at least me!
I have used Martin Sr.'s techniques, along with a lot of you guys ideas, and, while my Car's not done (by a long shot), I FEEL like I'm getting better at it. I believe I own at least some of the Norton Company as I have bought sooooo many rolls of Sandpaper!