Hey, i would start with the orange pad and SIP for moderate swirls. After that, go with the Nano on a white pad.
If the SIP on the orange pad doesnt do the job, try it a second time.......OR you want.. go up to the wool(which i don't usually do). The wool puts its own marks into the paint, which you then are to follow that up with the Orange w/SIP.
You'll know when the polish is broken down when you start to see like an oily looking surface. I know thats not a great definition, but its so hard to tell unless your right there watching lol. Sometimes if you see alot of dust, that means you worked the polish alil too long. Just work the polish in for 3-4 mins on a 2x2 area. When it starts to look transparent, then you are ready to wipe it off