Radar Detector Tests and Reviews by Guys of LIDAR - LASER
I'm looking at the 9500ix charts on this link, and it shows its almost on par with the bel gx65 (its competitor). It does a rating when you turn off the gps , which apperently lags the system and performs less when on.
I soppose these findings pretty much shows that 9500ix with gps on is great for city drivers (and its highways). But the V1 is for long stretch dessert/prarie/mountain driving?