Why would you not drag it every weekend? Worked in Powertrain engineering and the test cycles ran to certify that the workload on your vehicle (8400 lbs in my case) will sustain that activity day in and day out. That number, 8400 pounds, has to have reliability confidence to meet warranty life.
That's why I get excited when people over buy for their needs. Sure, there are horror stories out there but they are are all special causes. If towing issues were a concern the automakers would modify the towing capabilities.
When your tow dwarfs the tow vehicle... I would never say you don't even know it's back there...LOL