I know a guy who works at a major company dealing with aerodynamics engineering air planes. He is about as knowledgeable as they come and has been in the business for his whole life as a pilot in an F16 and also working on planes both mechanical and aerodynamics designing. I told him of this problem long ago and I finally gave him a disc with my CT scans, showed him my clips and gave him many cross sectional pictures of a normal nose. He is going to take it in and model it and find the difference between what I had and what I have now and what it would be like to reconstruct as well as what clip design would work best. (for me) He said that the head of the IT is basically the same as the leading edge of an airplane wing. It is supposed to cut into the leading edge of the stream and deflect it around above and below to create the same kind of flow effects as in air planes. That he can see how that would speed it up and talked about small changes creating big differences in efficient flow. He also said that any doctor that would cut that off 100% is a frickening asshole. (his words). Parker