Its hard enough backing up a 35-foot standard Class A. I've gotten spoiled with the rear TV camera though - I flattened more than a few small trees and bicycles before I got wise and installed one.
Of course, there was that time when we pulled into a campground just north of Veracruz and, despite my instructions, he thumped into a palm tree and a coconut fell on the roof. He came roaring out of the van, swearing like all get out and found me convulsed with laughter....things like that don't happen in the upper Midwest.