How about doing some tests to see how well various detectors filter out false signals like Cobras? I was just driving earlier today and noticed how my older Bel 980 responded to a nearby Cobra, and wondered how others would handle the same situation. Basically power up a known source of interference and drive towards it, noting any signals. Perhaps also include a real gun nearby and make sure one is ignored while the other is alerted to.
And if we could duplicate an infinity speed system for example, similar tests on the laser detection side of things would also be interesting.