Just received my Pro RX65 today. I am based in the UK and only purchased this RD after my Euro 550 died. The K band detection (On the UK Gatso's over here) is absolutely rubbish. For example, my Euro 550 would give me 400 meters warning yet the RX65 gives me hardly anything, you literally have to be 'ON' the gatso for it to pick up? I know the radar from gatso's is always detected late because of the beam firing away from the car but I have tried this RX65 on several camera's and it gives hardly any warning time at all. My Euro 550 was sooo much better. Can anyone recommend what settings to use for UK use and are there any 'hidden' menus to enable / disable frequencies. On the whole it seems like the Euro 550 was a Much, much better detector.