To Marq or others who have experience with auto painting--after my first coat of Brightside on my Jeep, it felt real smooth. After the second coat, I felt and saw these little, bitty specks that I figured were bubbles that I just overlooked and did not brush out. So, yesterday I did my third coat, and it seems that those specks are on there again. I am pretty confident that they are not bubbles. So, what are they? My guess would be dust particles, or something else from the ambient conditions? What do you guys think, and what do I do to avoid them? My garage really is not very clean, and wetting the floor is not doable. My guess is that I am stuck with them. If I do not sand until after the final coat (when I would use that ultra fine grit paste or whatever), will I be okay?

Thanks.