G'morning m4a1mustang!
If you're searching for a detector, why don't you just throw down for the best? Passport Escort 9500ix.
I'm curious, what features does the 8500 series have that interests you? The 9500 has the built-in GPS that after three false positives in the same area will not alert on that band or frequency again.
Hahah! I should've had this at the last place I worked at!
