I'm very familiar with cleaning chips (faces and edges) just haven't seen anything like this before, or at least this much. Just got these chips about a week ago and they have this strip of dirt going around the center of the edge. I did a few of them this morning using the "rougher" side of a sponge similar to a magic eraser, but I'm trying to find out if there is any quicker way of doing this. I'm sure there isn't though. I want these bad boys to SHINE & wanted to get some more input on this. Let me know!