A friend told me about the HFA a few days before a driving vacation. That was late September 2016. As of mid-December, I’ve driven 5,000 miles with it and observed behavior patterns.
It has made me a better, more calm and tolerant driver. Traffic doesn’t bother me now. I’ve increased my trailing distance to 200 feet or more, very few cut ins, even in heavy traffic. Cars frequently move out of my path voluntarily, my car is low so that’s great.
By far the biggest difference is the trailing distance to the rear, I’ve noted a dramatic reduction in tailgating. They close in and then back off within a few seconds. When that same person changes lanes they resume tailgating, but it’s some other hapless motorist.
I’m getting a front/rear dash cam to record this phenomenon, my friends didn’t believe me until they rode with me and saw it in real time.
Simply put, the HFA is like having a “Mr. Magoo Bubble” around your car, it really is amazing.
Don J., Portland, Oregon