Got a black vehicle. After using a California duster followed by a clean MF and detailing spray I noticed very fine swirls. Almost like a refractive area of swirls/micro scratches. They only appear with the right angle of direct sunlight or strong bulb. Any way to prevent this or keep them to a minimum? This was only used when there was a fine layer of dust on the car, not a bunch of dirt. BTW the Souveran top coat is great!