I ordered a sample set of the Jumers Secondary Paulson Set from apachepokerchips and stacked with them for some time. The white 1$ Chip got very dirty and the other "light" chips also got some stains. My theory ist that the black 100$ Chip ist somehow rubbing off on them? Anyone expierencing the same thing and knows how to stop it? Or ist the only solution just stacking chips of the same coloring?