I’ve never used crystals - don’t care for the idea of silica in their feet. I’ve just changed to soy/tofu, it clumps and controls odour very well and doesn’t track as much as clay or paper. (I always say that if litter doesn’t track *at all* then your cat isn’t really trying, lol.)
The a&h slide works great but her diaheria is worse so I am trying different things I read silica is safer. I agree,I do not like the idea of licking off crystals but clay is not good either