Beautiful ride. My back gets sore on long trips. I think it's the bolster in the seatback. It's adjustable, but not enough for me. I may need to supplement it with an aftermarket bolster.
So, what you did was turn perfectly good running boards into rock rails. Do you have skid plates on your underside? I suspect not. So now, you have generic rock rails, but no skid plates.
What all does the tow mode do? I used it while pulling a utility trailer last week. The only thing I noticed was what I think were angles of the truck steering and trailer displayed on the dash, (without researching it). While in manual, I had to watch the tach closely, because everything was...