So far I have driven with this gem for about 50 miles and I must say my unit on X and K band seems to be just as good as the Veil Guy's. I had a K band CO encounter today and my CI alerted me ahead of my V1 by about 2 seconds. My CI is also hotter on X band. I say this because I had an X band drone that I tested each one up against. It is more hotter on X band than it is on K band vs my V1.