Good advice but for the non Hammock Forum members here...
GE = Gathered End
BH = Bridge Hammock
Luckily the DD Hammocks have taped sides so you're golden. On the Catenary cuts for the sides, they sure help getting in and giving a flat lay but if you just want to try the concept out on a DD then go ahead, just be aware that the lay won't be as good as a true bridge hammock.
You sound like you've tried it?