So I tried the Super Clean and soaked it for weeks, and honestly, maybe you have to soak it for a month + to get it to work well, but it did work a little. I used Isopropyl Alcohol and wow, that stuff was like magic. Let it sit in it for a couple of minutes and then take a soft bristle toothbrush to it and it came right off. The little crevices may need a little more attention with the brush than the flat areas, but it didn't take terribly long at all.