i have a black 2004 grand prix that's in desperate need of swirl removal. i'm planning on buying the pc 7424 but have never used any machine polisher. i've heard lots of good things about menzerna so i'll probably end up using their products.i was just looking for some recommendations on the exact products, pads and steps i should be using. this car is my baby and i want to be absolutely sure i do things right. the car looks great freshly detailed in the shad, but when it in the sun, not so much. i would post pics but i'm new to the forum. also i live in michigan and i wont be doing it until spring so i have a little time to figure things out. thanks.