We haven't had any sway bars on our Explorer in 14 years or more..
Last time I took the weed wacker to the back yard I found the rear sway bar again.. I think it finally went to the scrap yard as scrap iron.
Our X isn't a DD any more, but I do try to take it out on DD runs every few weeks. It doesn't ride flat. I actually know a few people that won't ride in the X because they can't handle it. One gets motion sickness and the other is, well, scared of the body lean..
I've loaned it out to my sister in law and my Mother in law used to borrow it to get to work when I was working on her truck. That was about 10 years ago, but even then, we didn't have sway bars, although it was SUA and leaned less in the corners.
I have done a few swerves in it and I haven't knocked it over, the tires more or less slide first.
You do have to drive where you are going and not what you feel as you feel it moving around a bunch..
I should mention the speed limit out here is 75mph but I normally only drive around 65mph to help with gas mileage, but if I'm running late for work I have driven it at 75mph but I try not to.
~Mark