Sulastic Springs

I would like to see some measurable results on how much it improves the ride. A side by side video or two at least. I've built rock crawlers with hiem joint rear shackles for maximum flex and they drove down the road ok. I understand the need for rigid bushings, especially in steering parts. My wife's wrx that I autocross I run very stiff suspension bushings and subframe connectors. But I wouldn't worry at all about the flex of these in my one ton. The steering alone has so little feel and the 35 in tires take away any precision or feel. Body roll isn't uncontrollable as long as it's predictable.