Well I am taking the plunge to separate the tarp and the hammock from the same suspension lines. I am skinning the tarp, and trying to decide if I will BB bag the hammock or continue to skin it. I like the idea of leaving the tarp skinned to see the sky from the hammock but what really clinched the deal was the realization that if I could get the hammock out of the way under the tarp I could use the tarp for shelter during the day for cooking etc. I can't do that currently. If I BB bag it then I need to rehang each time I want to set back up. Not a problem if I am traveling each day but a pain if I am base camped. I am leaning toward skins.
I have yet to try out the system I have come up with, but I will have the chance to play with it next week. I am leaving everything as is for now so that I can revert to joined hanging if I need to. But I think this will give me enough benefit I won't want to.