The motorcycle cop sits on side road and catches people with frequency. The cop who pulled us over, a young family of four, seemed to make a point of finding as many things wrong with the car (insurance, etc.) as he possibly could. He was mean and robotic and I know of two others who have been ticketed in the same area. The scam is at the bottom of the hill coming down from I-35 so you build up speed on a two lane road without realizing what is going on. The posted speed limit is not easily seen because there are so many signs and traffic moves rapidly in all directons. There are few light on the road, too. There is an elementary school not three block away and they never set up a speed trap for that. I guess the revenue is not that predictable.