Min - I've got some test pieces in bisque fire now and there are a few little cups in the lot, just quick-pinched test things, but it'll be easy to run that test on those with.a couple of liner candidates. I hope it works as I want to do brushwork on bare or partially glazed clay on the outside and thinking it needs glazing on the inside to hold water., though absorbency looks good for that I think. Gift for my daughter - won't see dishware-level stressful use in rl, just would be nice if it made it through firing. Thanks, any other input welcome. I don't even know if it's unusual to just glaze inside a biggish moon pot like this, new genre for me. Took forever, too attached.