Some general comments to anybody considering this hitch: after using the blue ox for several years, my opinion is, if I am having to exert a lot of leverage on the wrench to turn the rotating brackets, that is a clear indication that I have not raised the trailer tongue high enough. My procedure is to get the bars slack enough, that they turn with almost no force at all. If I raise it high enough, I can literally turn them with my bare hands.
I would caution anyone using these to indeed be very careful if you are having to apply a bunch of torque on the wrench to release or install. The problem is, as Awchief found out is the saddle bracket can "twist" on the a-frame, and pop off.
Also, another point is, if the trailer is turned at an angle from the truck, that will result in one bar being "tighter" than the other, so be aware of that when dealing with the rotating brackets.
Chief, glad to hear you healing up. Scary indeed getting smacked anywhere in the head.