I used to be afraid of slow exits from the parking lot. Lateral wobble when turning on uneven ground throws the load back and forth. Given the high roof, this adds fore and aft leverage, meaning the top of the van wobbles a bit. I ended up on a canyon road in Colorado, one way, no U-turn (extended 3500). A couple of descents made the van sway so much at 3mph I thought it was going down a slope. However, after installing the Sumo springs myself (15 minutes) they REALLY limit side-to-side sway at low speeds and now I don't flinch when pulling out of a parking space. I didn't notice much of a difference on the freeway, but at low speeds it was a big help. They are inexpensive and if you watch the video they are very easy to install without removing the wheels.