I got my 8500 X50 a few days back and finally got a chance to try it out. On the highway doing about 140 KMH in a 100 zone, got one beep and nailed the brakes. The beeping got progressively faster as the scale climbed reaching max as I past a cop with his radar on, then it slowly went back down to nothing.
It gave so much warning though! It saved my but!
