That, obviously, won't return any weight to the front of the truck, being a sway control only. In the world of cause and effect, you are essentially addressing the effect, and ignoring part of the cause of sway.
Correct me if I am wrong, but wouldn't the cause be more likely to come from an improperly loaded trailer or an environmental factor? The environmental factors are what I am trying to mitigate. And as long as the weight removed from the front axle is not significant, an understeering scenario is preferable when towing? I have a friend with the exact same trailer, so we are going to take it to a CAT scale soon and see how much I am losing, and get a feel for how it tows sans WDH. I will report back.
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Improper loading is a huge factor, but I'm looking beyond that figuring that's already been addressed. Assuming proper loading but a heavy tongue (like my scenario) the impact to the front is what it is so to speak. So then you are left with how your rig responds to the environmental or physical inputs (wind, other vehicles, road irregularities, etc). The lighter the front gets, the more it will want to follow instead of lead.
Your first statement in this quote is a critical and you want to be sure it's not an incorrect assumption. Going to the scale is the way to get the data and understand the correct path forward. You may be fine without WDH, I'm just trying to point out the facts. Many assume WDH are only for 1/2 ton trucks and that simply isn't the case.
I'm at ~14% and add enough WD to get my front end to a 50% return. In other words, the distance the front end raises is half of what it is with no WD at all. Tows incredibly well like this. This, by the way, is fully aligned with the recommendations in the Ford Towing Guide.
Not for SD, although they provide guidance on how to distribute the weight. The weight carrying and weight distributing capacities are equivalent. This does somewhat make sense to me. A heavy, properly loaded flatbed trailer is a different animal than the same length/weight travel trailer because of the frontal and side area effects.
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Sway is mitigated by adding tongue weight relative to the total weight of the trailer. A good rule of thumb is >12%. In my experience if you have enough tongue weight you don’t need sway control.
I would be concerned this is just masking a problem. I do not own one but just doing a bit of research it seems if you had a sway problem it would be constantly applying brakes one side or the other.
Forward to page 41, it explains the brakes and WDH. This is from @shermanator2. He also made a cool spread sheet to help you calculate your weight distribution.
I was looking at these and air safe. I will hit you up if we go this route
I get your point but it doesn't have to be an "all or nothing" approach either. As @shermanator2 stated you can choose to only dial in a portion of the distribution. Very easy with the the hitch I have which makes it easy to experiment with different settings, etc
Airstreams have a known issue of the hull and frame separating, and it is believed to be from WDHs.
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