As mentioned, pre run, learn a section of road then slowly step up the speed. Biggest problem with these trucks is they are so capable...to a point, then things can go bad all at once.
And lots of times you don't know when that is until its to late.
Because they are so smooth the sensation of just how fast you are going isn't always there, they will let you "fly into the ground" with no real warning. With a Jeep you know when your moving out.
More than once I haven't felt like I was hauling ass until I ran up on something else, what I was doing 40 on had a stock Dodge, Chevy or whatever crawling at 15-20.
This is why the incremental increase is important. Just because you managed to run a section at 40 doesn't mean 80 is OK, hell, 50 might cause you issues.