I just tumbled some 9mm brass in crushed walnut (lizard litter) media with 1 cap full of NuFinish polish for 2 hours. I left the spent primers in the case. The outside of the cases look great, a bright pale yellow however the insides don't look as nice. Here is my question... 1. Are the inside of the cases supposed to look a nice as the outside of the cases after tumbling? Are there an ill effects if it's still dirty when reloaded?