[HAMBO]

Alright, after doing a bit more reading and experimenting I've decided I won't be using the CA Duster prior to a typical RW or WW.

I am not knocking the product (nor anyone's much appreciated advice), but I know I'm quite an amateur at this stuff, and as a general rule I try to stay away from products that are easy to use improperly and cause damage with; this seems to fall into that category.

Seems like if you use it in the exact right situation (with literally only dust and zero dirt), with the exact right technique, it can help you remove dust prior to WW cleaning. But I don't have the exact technique down, nor do I have the right lighting / eye to detect the exact right situation, so the chance for creating swirls seems too high.

Seems to me lubricating dust or very light dirt on the car, and lubricating the towel, is a sensible way to remove dust or very light dirt. And while maybe not perfect, the lubrication adds safety / provides some forgiveness. Anything beyond very light dirt just go straight to a wash.