I currently own a Cobra 9870, I'm thinking about upgrading to a 9700. Does the 9700 have a lot better range in KA band? I've noticed police in my area are upgrading to KA band. The 9870 isn't too bad in detecting right now, a little more warning would be nice however. I was going to wait until the Spectre problem was solved but who knows how long that will be if ever as I live in Ontario.