In the real world...there are people who follow the rules to a tee and then there are those who don't. Go figure. I believe everyone's idea of what rig set up is comfortable for them to drive is their own personal comfort level. I drove semi for over 30 years maybe my comfort level for driving big rigs are at a higher level. Companies had us over the road with all types of loads (tons) and incapacities. The laws allow them to operate in this manner until something happens. Most of the accidents with semi's were operator error, to tired. I have a CDL and will make sure the registration is correct because if stopped and weighed I will have been held to a higher standard due to having a CDL. I wont be able to say, "I didn't know" From what I am seeing on the forums almost everyone is above the ratings put on Fords F350, they ignore it, wont talk about it, or tell me they dont know what their rig weighs. I ordered a basic F350 with less than $1000 of optional equipment. 3.73 locking axle 110/400 watt outlet, remote start and a camper package. I am concerned with weight, reasoning for going from 18 to 19.5 tires and rims. The total weight of my camper and truck is 12,200 including 660lbs of tonque. My tires Michelin XRV total capacity are 16320lbs for 4 tires. The only reason for a dually would be stability in winds to keep some butt checks from tightening up however semi drivers know when its windy they slow down or pull off the road. Lances are know for being heavy. Mine says 3261 before manufacturer options. Actually weighed 4300 dry. My wife is a paralegal. She knows legaleeze and the legal system well. Some people do what they are comfortable doing and some do what they are told.
Happy Camping!