I happen to come accross this video, and thought it was cool to see the V1 and escort 9500ci go head to head. Although I think its best to cut one radar detector off and test independently so they both don't set each other off, this was interesting in the front and rear test. Both of these radar detectors are awesome. The 9500ci I was very impressed with.
YouTube - K band All-Star Game - p.1 - 9500ci vs V1 (Valentine One)
9500ci VS Bel RX65
YouTube - K band All-Star Game - p.2 - 9500ci vs RX65e 6.5