Hi OregonJKU. Not sure I understand your question. When open, the Foxwing fastens to the left side of the Treeline tent (rear of the trailer in my case). Conveniently, one of the compression straps on the tent is perfectly positioned to act as the Foxwing anchor/attachment-point when open. I open the Foxwing, swing it around its arc to the rear of the trailer and, using the compression strap, Velcro it around the Foxwing leading arm. The mounts I fabricated were to get the tension rods for the rear of the tent fly above the level of the Foxwing (or any awing for that matter). Without this or a similar solution (for example Ebrabaek's mod), you need to run guy ropes to get the fly off the tent as the tension rods would be below the awning level.
Hope that helps.