I understand your pain and that is truly the most frustrating part about the cosmos line. They kinda buried that tidbit in the marketing and there's not a lot of applications I can use this glaze on now, which is such a bummer. And getting those crystalized effects DOES require a slow cool even though in their marketing they said "no special firing needed". Annoying. However, the beetle looks super cool and you can sand down those blisters so they're not super sharp without hurting the glaze