I beg you to test this...test the Escort Redline and the Valentine 1 separately and then test them together in the same car. Many people seem to like to run both so I want to know if running both is worth the money and extra hassle, or if it makes no difference, or if it is counterproductive and hurts the range of one or both units. Then I would also be curious as to how far they need to be mounted away to avoid interference, and how mounting at least one vertically would impact performance due to both the angle change and the increased/decreased potential interference. If this has already been covered forgive me but I am yet to see any type of scientific testing that has tested these two units separately and together on the same course, and then drawn conclusions on simultaneous use with regards to how their mounting distances/locations may or may not impact performance. So, in a nut shell, is using two extreme performance detectors worth it? I pick the Redline and V1 given they are really the industry standards and fan favorites.