Hello guys, I have a squier affinity strat in metallic red. As I am experimenting to relic a poly finish (Yes I know you probably think I'm stupid to relic a poly body), I want to start by dulling the shiny metallic finish to make it look used and older. I started off under the trem cover so if i mess up it wouldn't be noticeable. As I sanded it, I was more like leaving white scratches rather than dulling the finish. Am I doing it right? If not, what are the better ways to dull the shiny finish?