I've looked at this saddle on several occations. I didn't like that fact that if you roll to one side or the other it looks like the Attachment plate would hit the red webbing adjuster. Which would make me nervous. I like the concept behind the saddle minus the back pad.
What i keep thinking is the cut the red straps and use two appropriate ropes for a bridge and just use a large Ring for the new attachment point.
Couple of things this would do, it would eliminate the Attachment plate hitting the webbing adjuster. Also it would allow you to adjust the balance of the saddle so that when tied in it would hold you more upright.
I don't have this saddle but have looked at it often. If i was to get it, those adjustments would be one of the first things i would do. Just some thoughts