OK, I've used P21S polish on my old car applied with 100% cotton cloths and removed with the same. Well my car seemed to have a lot of new fine marring. So I gave up polishing. Time went on....... Well, I placed an order from Groits Garage and bought their fine polish and 100% cotton cloths(which seem soft but thin). So, I polished a section of my new metallic hunter green Range Rover Sport and I see some new marring. Am I pushing to hard? Not hard enough? Do I need to spend a bit more time on one section?