I have the Hensley as well, bought used. I just took it off yesterday after noticing I bent a strut bar. Not sure how that happened, but I suspect I just turned my trailer around a little too tight in my cul-de-sac bc I heard a loud pop.
I found it used for $350 from a guy that worked at a dealer, and since he made the mistake of telling me it was given to him by a tech, I negotiated from $600. However, I am still searching for a used PP. They are simply better. More adjustments and easier to hitch up than the hensley. I rent my trailer, so height adjustment is really important, and Im getting tired of taking off the Hensley when I rent to a guy with a 4x4 heavy duty truck, and putting my equalizer back on.