Ugh...glazes crawled that don't normally crawl. My smokey merlot rims jumped off onto the shelf. Witness cones were all over the map. I have my loading and shelf placement down pat so can almost always get a consistent fire. I had cone 7 bent over, cone 5 barely bent over, one shelf a perfect cone 6. And some of my pots looked a bit warped. So chalk that up to never do that again...