I spent some real quality time with my 9500ix today ... I did about 350 miles, mostly canyons and some freeway, with a few podunk towns in between.
No Ka all day long until the drive home ... then on the 5 North Ka went full or nearly full blast and I dropped from 85 to 65 in a heartbeat thinking instant on. The Ka continued for 2.4 miles when I saw the CHP sitting on the shoulder. It was so long I started to think he was behind me ;-).It was a fairly straight stretch of freeway, but I was impressed with the range. I had it in expert mode.
I also got some nice RLC alerts. One in particular I looked around and swore there was no camera, then my GF spotted a very different set up from what I've seen in Orange County, but definitely a RLC. Love this detector so far.