I love this detector. I've made a descision to keep this detector and not get a V1 later as there's really no point in getting it (Although I'd like to see the arrows in person) but the 8500 gives me more than enough protection for my area for K + Ka and I found out I get lasered once or twice a day here. I also found out what brand radars the LEOS use here by using spec mode. Also, just today I was sitting in a parking lot waiting on a friend with the front of my car facing the opposite way of a bridge I was by and it starts going off on 34.646 KA I look behind me and don't see any LEOs or cobra users so I wait like 6 more seconds and I see a patrol car coming from the top of the bridge and I'm like damn!
Speaking of cobra users too, I've found a way to confirm a Ka alert is real or a cobra; when its real Ka, the spec signal will either not change, or hardly change such as 34.646 to 34.666, but with a cobra it will usualy switch from 35.5 to 34.646 to 33.8 and back to 35.5 and sometimes topped off with another false K band.
I'm already starting to save for a jammer...just waiting on the results of the GOL test!!