Thanks handye9, I am no stranger to towing and it's math which I already did. That's why I mentioned it to be close to marginal, adding the weight of my wife and kids. My truck just clears 2K# of max payload so I am good and can still be safe. I know lots of ppl who own TT's and larger fishing boats (I own a grady white walkaround fishing boat) would recommend a dually for most anything above a single axle pop up, but I don't feel it to be necessary. Sure is nice to have the largest TV available, but I don't think it is imperative, as long as one can tow within the safe recommended limits.
The reason I mentioned the airbags is because among the 1/2 ton lineup, the Tundra has the smoothest ride, which affects the stiffness of the rear suspension or lack there of. Last year I sold my work horse, a 2006 Ram diesel and bought the tundra as a left over last January. The Tundra has never had a problem towing my haulmark enclosed trailer weighed at 8000# full of tools and equipment. I still miss the torque of the cummins but in reality, since I only tow on occasion, the need for the HD truck is no longer there. The squat of the Tundra with the haulmark is minimal at best and with the boat is just not there, period. Granted, it is just over 5000#
With that said, I realize that the tongue weight with the 2809 will be a bit grater than the haulmark based on it's design, again, that's the reason for the airbag question.
Thanks for the raised flags though, valid concerns for sure.