You assume a lot and are so wrong with the above statement.And another unpaid spokesperson for the wdh industry...
And the perception that "When you get into an emergency situation the WDH will save you." is what sells.
I've been pulling trailers for 73 years, most with a WDH and some without. And I've used several brands of WDHs. My statement about safety is from experience, it is not merely perceived. I'm not selling anything, just offering my experience regarding Durkis's question.