I probably wouldn't worry much if I had a slider hitch. Probably the way to go, that being said though, I have had a 2014 2500 Ram ccsb, and now a 2015 Ram 3500 Mega,sb, and I haven't done any damage to either truck with a non slider hitch.
I have the Rvk3600, and I have had this giant 5er on off camber hills, steep steep hills up and down, through terrain that most people with this type of high end trailer would never go. We do. Now I might be lucky, or just plain dumb luck, but after 2 5th wheels totalling over 30,000 miles and 27 states, I have not needed the slider hitch, and yes I have my fingers crossed.
One thing to point out is that, I always approach the obstacle very very slow, and not only watch the front cap of the trailer, but also the clearance at the top of the bed rail. I think I probably would have made contact if I would have driven fast through these situations like a lot of the knucklehead's I see. Just my .02 cents.
2015 Landmark Newport 365
2015 Ram 3500 4x4, CTD, DRW ,MC ,AISIN , 4.10's,
Six Burning Six Turning ! ,RVM 104