You know what. That audible warning feature is awesome. It's fairly uncommon to see this in a set of gauges (I think defi is the only other major manufacturer I can think of that does this).
You know why an audible warning is great...so you don't have to look at the gauges to get warned. Your visual attention should be on the road or at the very least on the tach/speedo/mirrors/road.
I might consider picking one of these up in my next round of gauge/display changes....maybe.
<--used to study attention management and auditory perception.