I've owned DRVs since 2004 - a 2004 Mobile Suites 36RE3 that we had for almost 10 years, and our current 2014.5 Mobile Suites 38RSSA. I've never had a wall problem with either of them. They both have been sound, reliable 5th wheels that we've enjoyed greatly - if the 2004 wasn't, we wouldn't have bought the 2014.5.
Rusty
2014.5 DRV Mobile Suites 38RSSA #6972
2016 Ram 3500 Dually Longhorn Crew Cab Long Bed, 4x4, 385/900 Cummins, Aisin AS69RC, 4.10, 39K+ GCWR, 30K+ trailer tow rating, 14K GVWR
B&W RVK3600