HOW MUCH TO DRIVE OVER SPEED LIMIT WITH ONLY ESCORT 8500 X50?? I have a 3 hour trip taking 287 north in NJ with a speed limit of 65 for most of the way I think. All i have is a Escort 8500 x50 and I want to know what speed I could travel at with enough time to slow down for cops. I usually do 80 without a detector and just got this new Escort because of a few close incounters. Is 85 to 90 alright??