Okay, so just got back from our trip last night and after 1200 miles with the Andersen hitch I can say it made a huge difference over my old hitch with no sway control. I was a little nervous so I took my old faithful 20 year old Reese hitch. I also needed it for tongue weight so I put it in the front storage bay where the future generator will be. But I don't owe it all to the new hitch as the tongue weight and distributing it on the truck was a significant factor. After we loaded I measured my hitch weight with the hitch scale and I was at 1060 lb, the camper was about 8000 with gear, so just over 13% on the tongue weight. Here were my stats below.

Camper 8000 lb
Hitch weight 1060 lb
Truck bed had about 50 lb of miscellaneous 3 gallons of gas, MX boots (because they stink and I don't want to stink up the RV), a second empty gas can, an aluminum stand to measure hitch weight and another pound of junk or 2. The truck front had the wife and I, a couple phone chargers, (2) 3/4" drive breaking bars with a couple sockets for on the fly hitch adjustments if needed, 2 small hitch scales and that's about it I put the rest in the camper and wanted to save as much payload as possible. I figured with the hitch weight we had about 350 lbs left of the 1760 of available payload.
Truck height from fender to ground was 37.5" on the front AND rear. Stock front ride height empty was 38" with no one up front. Rear dropped 3.5" from stock 41". That way I can confirm I added a little weight to the front and keep the front wheels doing what front wheels needed to do, steer the truck.
Truck sway control: OFF this was recommended by the hitch manufacturer so I started out with it off and noticed a little later on when I restarted the truck and forgot to turn it off once with the truck suck.
Lane keeping system of truck definitely OFF. You want some fun, leave that on. I don't know anyone that doesn't drag a line while towing, but you don't want any surprises while you are slowly correcting the situation on your own in the 1st place.
I installed the RV on the hitch 1.5" lower from level on the front as Andersen instructions are a little low on the front or level and past experience tells me less porpoising when the pivot point is lower on the front and it doesn't seem to pull back up on the truck as hard so I ran with that. Followed the hitch instructions, hand tight at hitch just lowered on the ball then 4 revolutions each side. Here is a so-so picture below somewhere between DC and Richmond just off 95 on Christmas day, not so perfectly level spot, but this is what I got.



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Hope that came out, you may have to click on it. Edit: Click on the photo instead for a larger shot.

Now for the drive, we left Christmas in 20 mph sustained winds and 14 degrees and I get on the PA turnpike and head up the hill from New Stanton and drive through the twists and ups and downs to Breezewood then stay on I-70 to DC. I was nervous to go faster than 65 max, so that was it, I figured this was going to be a long drive and I will do some more truck upgrades upon my return and just stayed in the 60-65 mph range. But, once I got to Maryland and the wind calmed down and the sun came out I could go faster and 70 mph was not a problem once I figured how the hitch felt too.

I noted before that if I can safely go 70mph and when needed go 75 to pass a truck (or a car that does't know how to use their cruise control😉) I would be happy and I met that goal and all of a sudden I was feeling pretty good about the setup. Now if you are going to ask me if there was no truck suck when a faster semi was passing me I would be lying if I said no but it was minimal and very predictable and I expected some having towed larger trailers. It's all relative when you are towing 8000 lbs with a 5000 lb truck or 13,000 lb with an 8000 lb truck you are going to have some no matter what. Another thing to note is when I was passing semis truck suck was almost nil. And it felt it was pulling on the camper, not the truck, or that was the sway control in the hitch giving me that feeling.

Porpoising happened twice on the way down around DC on a bad road to bridge juncture and going about 60-65, none on the way back (but more on that below). It felt controlled, not unsafe, no discounting feeling and no bottoming out feeling, just 3 maybe 4 bounces and it was over, and no side to side sway, it was straight and one was around a turn. To me porpoising is when the suspension (shocks, mostly rear) can't recover in 2 up and down motions, so one bounce doesn't count in my book, that's just your rear suspension doing it's job. As the FX4 package shocks wear out down the road I will get some valved Bilsteins but I don't feel in a hurry about it at this point as I felt it was acceptable or I need to plan a little better myself and slow down a little if I see a spot on the road where I may porpoise.

In the second half of the trip I was going to have to take my own water in, so everything was loaded the same for travel but with 100 gallons of water this time. I unfortunately was not able to weigh the hitch because we were in the sand at both locations and the RV was driving my stand into the sand in an unsafe manner so I did not get this vital piece of information yet. With the water there was some sway at 60 mph and the drive just sucked on a bouncy road. Definitely some porpoising going on here! Thank goodness we only were going 35 miles or I swear I was going to pull over in a parking lot and disconnect and measure the hitch weight. I don't know exactly where the water tanks are yet, but I swear it made the hitch weight lighter and I know it dropped the the ratio under 13%. I will get this measurement on the next trip. I probably could have tried an adjustment or 2 with the tension of the hitch, but we were a little on a time crunch.

Heading home we left with at least a half to 2/3rd full black tank and everything else was empty, everything loaded the same as we left with less beer in the fridge. We had a 2 hour drive to 95 and get to a Love's to get rid of the black tank and we had a little more nuisance bounce than on the way down, but nothing unmanageable, just being picky at this point. After the dump everything was as pleasant as could be, I even went I-64, 81, and 522 for even less stressful traffic, why I even thought going through DC on the way down was a good idea I will never know. Totally worth the extra miles, probably less time because you can actually go the speed limit the entire time.

Anyway there it is, I hope this can help someone trying to figure out their new or even old camper, hitch, hitch weight etc... I was half tempted to try the Cat scale myself at the Love's, but the wife wanted to get home and she does not have the same level of entertainment about this as myself. She noticed the sway we occurred the the whole ride home when we purchased the RV and couldn't go any faster than 64 mph without white knuckles. (I think she had them too) Now she doesn't notice anything except a couple bounces here and there so in her mind it's perfect, lol. Keep in mind if you are looking for a perfect setup and want your truck and camper to feel like you're driving your Porsche while towing it will just not happen, but it can be done safely and without white knuckles.

In the future after this I'm just going to get good quality H rated LT tires, I honestly don't see how it will change much for me at least going to E tires since us 1/2 tons won't need 80 psi in them to get their true potential, but one of my guys (with the almost identical F150) will swear up and down about them and I'm not going to tell him any different, if he feels it helps then by all means do it, just my 2 cents. The other thing is a rear sway bar on the truck, I have no idea why there is not one on every truck. A car with over 400 horsepower definitely needs a sway bar but not a truck with over 400 horsepower, c'mon American truck engineers. And how about a sway bar for the camper? And as noted above, some better shocks with less rebound when fully compressed, 2 stage would be ideal. I'm not off roading anyway and don't need a quick rebounding "FX4 package" off road shock. After this trip I'm not in a hurry for anything, but when they need done why not upgrade...

Any questions, concerns, comments fire away. Want to change this to towing with 21G that's cool too, I saw 3 or 4 of you 21G' guys on 95 on Monday. Oh, the camper, it's just awesome, so far... Cheers and happy towing!