First off, thank you Courtney and John for a great evening. As for gravity, sure it works. I saved one 100%, one about 90%, and lost one due to it leaning over because of a thin shoulder. So I fired three pots in 8 hours and saved two. I don't think the firing costs much, so I am way ahead, plus it quenched my curiousity. If you have a hunch, try it; no plunge no pearl. Oxypotter.