Bel RX-65 versus Escort 8500 Classic versus 8500 X50...how these compare and differ has really confused me. I want to get a RX-65 now for travel given it seems to do QT/IO better than the X50...but I always thought they were essentially the same. Furthermore, I also read many people prefer the 8500 and that the RX had or has the first 8500 series circuitry. Can someone clarify? Is the RX-65 better than the 8500 and 8500 X50? I have both of them and am curious how they all differ.