The 30 sec K mute is OK, but I would much rather have a full auto mute untill it breaks the pre determined threshold. I have mine at 4 LED, which I don't usually encounter more than 4 unless it's a real threat. I have my automute turned all the way down, and just use the visual signals before it breaks the threshold.
When it breaks this threshold, I know to pay more attention to it. I don't want to pay any attention to it just because 30 seconds have passed and I'm sitting at a light.
It would also be sweet to have the option to have the the arrow blink at you when the threat is detected instead of solid, then if multiple threats are detected, blink in the direction of the most threatening. This would help in grabbing the attention of those like me who just use visual alerts untill the LED threshold is broken.