I've got a black Audi TT. I 've been using the Zaino lineup after 3M SMR with a PC. Swirls were pretty well gone, but with a few washes and winter here now it seems all I have to do is look at the car and I get tiny scratches. Do I need to top the Zaino. I know you can't go back to Zaino after the wax, but it seems like I wax the car every few weeks anyway. Will a wax topper fill the swirls and maybe offer a little more protection. I really like the look of the black and I do see the "candy wrapper" gloss of the Zaino. Maybe I'm looking for a little deeper shine and some hiding power. Any help would be appreciated. P21S is readily available at the dealership and the wife is out of town for a few days...might this be a solution?