Ill have to play with it some more.
As I was dialing in the strut bar length I found that if I made them to long it locked the head in a downward position and would not allow me to lift or roll it by hand. I imagine once the stinger is locked into the head and the weight of the tongue put on the hitch it locks the strut bars in compression. The pins on either end of the strut bars don't look like they will allow any rolling movement either.
I'm sure it works... I just cant wrap my mind around it.
Thanks for your help. And posting the picture.