Maybe I've gotten used to it maybe it has gotten more used to me. But, the odd shifting and torque management doesn't seem to be as invasive now as it was when I first picked up the truck.
On Saturday, I picked my dad up when we went to lunch. After 30 miles or so, with him suggesting things to do and us seeing how the truck reacted, we're pretty sure it's the lousy "get more mpg's" tires that are the cause of the truck feeling so unsettled.
If you're in a curve and hit a bump or a slight dip, the sidewalls feel like they're trying to roll under or something, making the whole damn truck get unsettled. You get a similar reaction if you steer in one direction, then back, and then back to the original direction. That third movement causes the rear tires in particular (they're at 40 lbs, btw, so not under-inflated or 'soft') to give and the back-end to feel like it's not tracking well with the front.
If i was setup for it, I'd be tempted to temporarily swap my tires to the loaner and the loaner's tires to my truck to verify our thinking. But, trying to swap tires around with one friggin' floor jack and a 4-way...