https://www.youtube.com/watch?v=-FhIEc62mKA

Unfortunately, that simple setup costs a staggering $475 when you can still buy E2 WD hitches for about $232.

However, (and there is always a "however") I just talked to the designer of this KAAD Engineering hitch.  He claims he based it off the Anderson hitch, and he talked to Anderson first and told them what they had done wrong.  He says he's corrected Anderson's problem areas and has a better hitch (for about $69 on Amazon, and he'll send you $20 back if you write a review, good or bad).  After talking to him over an hour today, I'll recap some of his sentiments (your mileage may vary).  He said the anti-sway of the Anderson is built in the ball which rotates in a tapered bushing (which will wear out) to create the necessary friction.  And they use less expensive poly 'springs' which are not as good as real springs.  And their profit is almost $300 (the aluminum piece in theirs is the most expensive part).  His design is much simpler than the Anderson as it uses a stationary ball and anchor point and real springs.  He's trying to break into a market where there is a "sea of HD hitches... all based on very old technology."  So he's selling them for less than it costs to produce them just to get some out on the market, and he has a 30-day money-back guarantee.  Here is his website:

http://kaadengineering.com/weight-distribution-anti-sway-hith/

Here is the Amazon site to buy it:

https://goo.gl/REZhZH

I'm going to get one and try it.  Sure costs a lot less than the traditional type.  If it doesn't work, I'm not out anything.

Actually the only difference between the two is the expensive aluminum ball mount on the Anderson and the cheap poly 'springs'.  The one I just bought has more expensive 500 lb springs on each side instead of the cheap poly ones, but the chains do look lighter.  However, he's an engineer and I'm sure he knows the strength of the chains.  He took a good idea and took the "fluff" (and cost") out of it and made a "better mousetrap."  Don't confuse the price of $474 Anderson hitches with better performance.  they both work on the exactly same principal.  Instead of using spring bars, they are using bridge triangulation technology.  I really liked the Anderson.  I found it first and watched the videos.  Then I found the price and said "no way.  I can buy just about any WD hitch for that" (but in reality you buy them for about $150 and don't need to spend $500 on a WD hitch.  The end result is the same with all of them).  Then I found this engineer that had designed a simpler one for a lot less money.  It will work the same except I don't think it has any anti-sway.  But like I said, I have a sway bar on my pod now so it makes no difference and would be foolish to spend $474 instead of $49 (it costs $69 but he'll give you $20 back if you send him a review, good or bad).

Every vehicle I've ever owned with "traction control" it was "on" all the time (default) and you could turn it off (although I've never seen anyone figure out how that helps), but I've never heard of it having anything to do with trailer sway.  Sorry, can't help you on that one, but I'd be interested in whatever answer someone comes up with.  My new truck has traction control but it doesn't do anything for trailer sway.

 It's true that most weight distribution systems have sway control built in as part of their function, and a few are strictly weight distribution with no sway control built in. It's always prudent to try towing with neither unless the sag is too much and affects handling. Then get weight distribution hitch, and might as well by one with sway control too. I think the Andersen is one of the least expensive.

 The problem using coil springs alone as damping mechanisms, is there is no dampening, just shock absorption, so the trailer will oscillate several times. The Andersen was great at eliminating that bounce. Those urethane rubber springs don't oscillate like a traditional spring.

Yes, StephenH, you are right on almost everything.  I can see no sway control and I don't believe the springs have anything to do with that.  Anderson accomplishes that with the special tapered ball shaft in a friction material.  I think the KAAD is strictly an equalizer.  Also, there is going to be some limit to backing angles with all equalizer hitches.  I think the ones with the bars that lie in a saddle and provide friction in the saddle have the best angles, but only if the saddles are not mounted too far back so as to cause them to fall out in a sharp turn (that happened to me).  The oldest style ones with the chains on the end of the bars would have the same backup angle as the KAAD (IMHO), but KAAD is brand new, trying to start a revolution in WD hitches and is practically giving them away to get them out in use and reports on them (they cost him over $80 each to build).  The first two he actually gave away because people are afraid of new technology that doesn't cost a lot of money.  He said he'd ship mine out next Monday.  I think right now he hand-builds each one until and if they get popular enough that he can put them into production.  You're right on the various pictures.  I'm sure some of those are prototypes and he's still refining how to hook things up, but the physics behind it remains the same as the expensive Anderson.

No, I meant behind.  The fresh water tank is placed the farthest to the rear.  Ahead of that, and still behind the axle is the grey water.  Ahead of the axle is the black water.  A very poor design.  Forest River really has no idea how to design a travel trailer after all their years in business.

Did you ever get the KAAD WDH?  If so, how did it do?

What happened to the knock off ??