Not exactly on topic to the camper but a sidebar discussion for you to consider. If your going to be towing a lot, consider having your tow trailer tongue modified to be extendable so that it reaches the hitch on the truck without the super truss extension. I had a local trailer shop do this for my 12ft cargo trailer. When the camper is off the truck, I can tow the trailer in a normal configuration. When the camper is on however, I pull a pin on the trailer tongue, slide it out about 4ft and replace the pin. Now my tongue will easily reach the hitch on the truck. No need to hassle with a heavy super truss setup and it reduces the stress on the truck as the closer your hitch is to the axle, the less moment arm there is exerting pressure.