This may not be a new concept, but it is new to me. I originally read about them on Phil Rowley's website, and have since done a little more research. The concept is to create a "balanced" version of a fly using a jig hook with a cantilevered tungsten bead so that it hangs horizontally under an indicator vs. a typical tie that hangs vertically. It seems like the idea has merit, so I ordered a few for my Fall stillwater outings. Anybody ever tried these?