I just received my first set of Titan silicone rings. They really look nice. I chose to start in a moderate way with all white. I did not find a topic on the best way to keep them clean. I know they will be much easier than rubber rings. Should I use Novus 1, Scrubbing Bubbles, Magic Eraser or something else? I want something where I do not have to worry about damage to playfield or plastics. Thanks----