Knowing all too well that radar detectors are mass production, what can be done to optimize a modern detector if one has the time and patience, and is willing to track down the right tools? Since most of the operation is defined by firmware, I'll start by ignoring that and considering just the horn. Can anything be done to improve the horn's efficiency, such as smoothing and blending the top to bottom seam, for example? Polishing the inside? Camfering the lip? Or is any change more likely to hurt than help?