Hello all and thanks for all the great info. I purchased I new 370z magma red in color a few months ago. The dealer was nice enough to leave some swirl marks for me to take care of. After reading and watching countless hours of how to best take care of this I purchased a PC a variety of pads and sizes as well as M105, M205, ultimate compound, ultimate polish. I was able to remove a vast majority of these swirls with a couple of stubborn ones lingering. They are on the back between the bottom of the spoiler and where the hatch opens. I have gone as far as trying a 3401 with an orange hex pad and m105, still they stick out like a sore thumb when out in the sun. What am I missing? Should I try a yellow cutting pad next? Any other suggestions would be much appreciated.