Saying the same thing again from a new angle:
Unless you plan to spend all of your Interstate time in rallies, commercial campgrounds, and Cracker Barrel parking lots, I *strongly* recommend that you carry a leveling block set.
This photo should speak for itself. It was taken in Sam Houston National Forest where we found the entrance to the only available overflow campground "speed bumped" by a sloppily made, pushed-up mound of limestone gravel fill (our government at work).
The radius of curvature (if it could be called that) was different on each side, such that I managed to get INTO the campground with only a minor insult to my skid plates, but getting back OUT again was not going to happen without the assistance of the blocks (not nose-first, at least). The rate-limiting factor on the exit became the engine exhaust line rather than the skid plates.
Sprinter's wheel base is very long and unforgiving in scenarios like this. Then there's all that extra stuff slung under the chassis. I can see how that ground clearance is going to be an ongoing hassle. I will go nowhere from now on without my leveling stack under the rear couch of the Interstate.