Uhhh...nevermind.
I mostly keep my zouk and my octave mandolin tuned to GDAD and I've thought about tuning a guitar to DAGDAD. I play a lot of 2 note chords on the GD strings with a drone on the high AD strings and I don't see why having another set of lower DA drone strings wouldn't work. It might be a huge sound but my zouk sounds so good as it is for tune accompaniment I've never bothered checking it out.