So I jumped on the Zaino bandwagon and I'm glad I did. I washed with dawn, claybared and did a layer of z5 only as I have time until tomorrow to do anymore.....and it already looks better than any wax I've ever used. The 1 layer of z5 I used did a decent job of covering up the swirl marks but at certain angles you can still see them. I did get a tiny scratch here or there from the claybar as the bumpers were very filthy and crap got caught in the bar. Tomorrow is another layer of z5 and a z2 if I have time!