Dale,
I use the California duster daily after blowing off the large chunks of dust with my air compressor (40 psi at an angle)......QUOTE]
On a black car I would advise against this, it collects dust then you are moving dust all over the car, and in my mind you will see scratches especially on a black car. I think my bro tried this on his car and was very unhappy, maybe he will chime in. Now on the interior those things work very well, but I would not use it on a painted surface. It is like using a sponge to wash your car, you get one one little spec of dirt then you wipe it all over the car, leaving scratches. To answer your question the wax I use is Mothers Carnuba, it goes on fairly easy and comes off easy and it leaves a good shine.
Justin