The last couple weeks I had to commute out of the city daily so I thought forget highway mode lets try City 1 Low X. Reason being the highway I would take was flooded with multiple weak X band signals that went on and on for miles. Muting an alert would leave me open to attack since the unit fails to notify the user of a band change if one alert is muted(ex. Ka overrides X but no sound). I was expecting the X/K confusion to happen almost instantly but to my surprise City 1 mode was working properly. The X alert would not be shown unless the signal strength was at least level 4/9. That alone made my detector super quiet along my route. However coming back into town it didn't take long for the X/K confusion to begin again.
Result: City 1 mode fails in the city