some users of the haha don't care how it works...just that it does.
others want to understand it...
in my investigations before and after the purchase a few interesting links with diagrams or info have been helpful...
here is a link to a simple diagram...
http://www.divtune.com/hensley/
the author also has written some concepts on hitches.
readers may find his words useful so click back to his page...
also here is a link to a fulltimer a/s user....... is patrick on the forums?
he recounts his experience from installation to hookup to towing...nicely written.
http://patrick-irish-wolfhound.com/f...v/hensley.html
cheers
2air'