I just stumbled into my anglometer (angle measurer however you spell it) and thought I would add a factual data point to this thread.
My hammock suspension hangs at 45 degrees at the foot end and 40 degrees at the head end. I have no idea why they are different. Maybe because there is 6 inches difference in lead length, the way it worked out.
The head end is tied off about 12 inches lower than the foot end. This was done on purpose, based on someones comments in the forum.
When I get diagonal I'm at about 30 degrees to the centerline and almost flat.
I have been sleeping with this setup for several weeks.