I've used the 3M hand glaze, just apply it like you do a liquid wax. I certainly would "prep" the finish before hand, by washing with Dawn to strip the old wax off, then (optional) clay bar it, then apply the 3M hand glaze, and finish it off with a wax of your choice.
I got good results from the 3M HG with the minor scratches, but if you want to talk specific products for swirls, you should really try the P21S Paint Cleaner, it too removes swirls and I cannot tell you how estatic I was about this product. I ended up giving away my 3M stuff to the neighbor.
I got good results from the 3M HG with the minor scratches, but if you want to talk specific products for swirls, you should really try the P21S Paint Cleaner, it too removes swirls and I cannot tell you how estatic I was about this product. I ended up giving away my 3M stuff to the neighbor.