Quoted from KingofKoopas:So THATS why I have such a hard time removing ball swirls. On a new game I usually hit it with novus before the eraser and then wonder why the ball swirls take hours to get out at times.
Basically he's talking about rubbing the dirt in deeper. Swirls/etc are dirt sitting in the cracks in the finish. Anything that helps clog that up or pushes it deeper.. makes it more difficult.
As long as the novus residual is removed its more about the consequence of working it in deeper...