me and my friend switch detectors today, he took the V1 and i took his X50. we both reported picking up Ka and i liked the scanning dot, it almost made up for not being able to tell were the Ka was coming from. but im thinking about getting a X50 maybe for X-mas and the only thing was it rattled pretty bad against my windsheild since its a little longer in length. is there any way to prevent the rattling. i positioned it several different ways but still had the problem.