We run" k "band radar in our part of bama,and i have tested the bel and the escort along with uniden cobra and many more detector's except valentine( its on my "to do" list. My finding's vary but i have a class or list of my own. Beltronic's first.escort second and uniden third, all other's fall very short,cobra has a lag time in responding to "k" band and it can cost you! Beltronic's and escort was neck and neck,bel had the edge for checking behide you,but escort is holding their own as far has front detection. "my advice is don't speed! If you do use common sense and your eye's open. A lead car don't work anymore,beside's i made a few stop's in a cluster and they alway's say:well he was running as fast as i was!..yes sir but your the one i got first. They has been a few time's i go 10-8 code 2 which is a warning,but i alway's carry a pocket pad and write the tag and info down, if i get you again "ticket". Anyway,back to the radar detector, i am a beltronic's man, i can't afford a valentine yet, but i understand they are very nice. For the money stay with beltronic's or escort,unless your rich then try the valentine,i hear they have great detection ability....so long for now...copperfrombama.. Be safe!