Bob,
Do you think the 3M dry coat stuff would be simple enough an inexperienced person could use it with OK results? Oh, Do you think it would be cost effect to use that stuff or the traditional method on an entire truck?
I have a hard time guessing at how I should spray my sand-able primer so that I could use a guide coat methoid. I would think you would maybe get black sand-able primer then spray some grey on top of that, then you just about sand most of the grey back off..? I am guessing here... I never heard of a guide coat until someone here told me what it was.