IDK, the 9500 or V1 will probably be the one I go with. I love the invisibility of the STI, but performance just isn't up there according to the tests I have read. I have had great service with Escort, so the 9500 may just be an option. However, I would rather have false alarms than no alarm. Not sure what it is, but cops have been watching people like crazy in the past month or so, way more than usual. Being hit from the rear is a big concern, and without a doubt the best performer is the V1, don't see how you can argue that. Also, I am kinda sold on the arrows. I like the idea of knowing where the radar is coming from. About 50/50, both seem to be excellent units, and either will be a big improvement, just not sure. Thanks everyone.