My friend and I are getting our V1's this week. We have noticed there is a big argument between Ka Guard On/Off so we decided to the comparison on the both. We will have V1's on at the same time (one on ON/another on OFF) in the same car and see the differences. We might post the results.
PS- we will ask another friend to bring his Cobra to mess with us
PS 2- we live in the Chicago suburbs