Originally Posted by Trooper
... Maybe, try posts mounted 15' apart, but angled 15-20° away from each other. ...
I'd be concerned about angling posts. The force on the posts would tend to be upward toward the surface (thus not as much resistance and no compression), whereas with straight posts the force would be toward the side slightly into the ground (much more resistance and compression). Just my take on things.
Clear as dirt?