I've noticed a few things over the past year with my V1, latest firmware, 3.872.
Infinity SUV's set off the laser alert, but combined with a Laser jammer it helps to determine if it's a real alert or not.
Certain Mercedes emit k band which is really annoying on the highway as it comes up to two bars then mabye 2 or 3 on the bogey counter then goes away.
Lastly and this could be my own misunderstanding of radar still but, lately I have come across the following scenarios.
Heading north on a two lane highway, a LEO comes on the south bound side of the two lane southbound highway. I'm virtually side by side, the Ka alert comes up as one bar, forward arrow, then the rear goes off and full ramp up almost increasing as he is driving further away. The range of the rear antenna lasts even after he's out of sight.
Second scenario is heading north on a two lane highway, I can see a LEO parked on traffic detail on the right hand side of the highway. I am in the left lane approaching. As soon as I am next to him, the Ka alert comes up to two bars, forward arrows, then immediately the rear arrow lights up, and the level increases full strength. The rear antenna detects the Ka signal as I move down the highway and around a significant left hand turn in the highway.
I'm wondering if I should call up V1 and schedule it to be sent in for service, or if it's my misunderstanding of how radar really works, or what frequency was being used.
At any rate, I wanted to share my experiences with the V1 since I've had it. On the flip side I've had quite a few saves with it, not unhappy at all, I love it, but just wanted to see if anyone else with more experience could chime in!