I was hit with a small stone near the edge of the car near the rear tire panel. It left a small indentation and a nick to the metal. I prepared the small area and added touchup paint . After about 1 week I used a 2000 grit sand block (Meguiar) and some 3M hand Glaze. The area looks better although where I may have touched the uninvolved paint area, it is dull (kind of like an eraser mark) It is not obvious but I think it could be improved...just dont know how. The original chipped area still has a little blob but I can live with that. I just have trouble living with the part that was uninvolved but looks like an eraser mark...ie...no glaze. Is it possible I accidentally sanded away the clear coat over the original paint? How can I correct this? Is there something finer than the 2000 grit sand block? Thank you.