@Knox GSL when you say not as smooth are you referring to going over bumps or vibration coming through the suspension.
Did the kit you installed consist of just spacers or did you install new springs and shocks as part of the kit?
Everything in the road is felt. I just drove it about 300 miles and it seems to have gotten better. I'm thinking that part of it may be the tires going through a break in period as everything is better than when I left home. We don't put a lot of miles on a vehicle in town as I work from home and my wife's school is about 1/2 a mile away. We do travel to Alabama and Georgia to visit family often which is where we rack up most of our miles. I'm hoping that we get out and do some mountain trails north of Knoxville like we used to in our jeep now that our boys are old enough to go camping.
I used the ready lift setup.
In hindsight I think I would do the 2" rear spacers and an adjustable coilover in the front set to about 2" if lift. My F150 has a 2" spacer in the front and does much better than this so I may swap that out for now. You can run a 10 wide wheel with less back spacing with 2". My mistake was doing the "stance" thing with a negative off set which will rub with no lift. The tires are the same diameter as stock, just wider and more off set. 305/50/r20.
Overall I love the vehicle, massive amount of room, comfortable and it feels like driving a truck unlike many of the modern SUVs.
I've swapped the Ford logos front and back to black on chrome and some vent visors to help with summer heat.
I've averaged 16mpg so far, a little better than my truck but this is with 12" wide AT tires so that's not too bad.