here goes..

When I'm using the 7.1 or 5.1 (witch ever it is) on the Gold Wireless headset.

Witch audio settings "in whatever game I'm playing" should I use?

Home theater setting/5.1/7.1?
Simply headset settings?

Tried googling, bing'ing and Alta Vista (with no success, sad) this and didn't find anything.

Wasn't easy coming up with the right search words :/