Original poster: "S Gaeta by way of Terry Fritz <twftesla-at-qwest-dot-net>" <sgtporky-at-prodigy-dot-net> Hi All, Check out: http://hot-streamer-dot-com/temp/UFM%20smoke%20test.jpg Predictably, the spark breaks out at the sharp corners, but the flame is breaking out too! The flame actually beat out the sharp metal corners as a favorite break out point. Sue