I guess 80 mph is the new 65 mph

We tow between about 60 and 62, VERY rarely over 65. Safety is pretty high on our list of good reasons, tire specs are usually for 65 max and if they're voting for 65 so are we. Both of us tow, but it seems to be leaning more toward me with DH playing solitare on his Kindle and I just feel much more in control. Gas mileage is bad enough....why make it worse. And....if you really have to be some place at a specified time, you should have left sooner.

Foolish, IMHO, to fly along at 70 - 75 - not only for your and your family but for the rest of us.