Biggest reasons we've pretty much always had a dually. Towing stability, pin weight (mostly with the fifth wheels we've had), and that extra set of tires in the event of a rear blowout. Wife won't have anything smaller than what we have in a tow vehicle, plus I like a truck with hips anyway. You have a very good combo there. Enjoy.
John and Rebecca Dickson
Emma-8 / Little John-5 / Iva-1+
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)