OK guys, in order to make premades as simple as possible (and to make AV premades possible at all) everyone who wants to run a premade of any kind needs to have "Preform AV Enabler" installed. It's very simple to install and no config is needed, but feel free to contact one of the officers (Tweak, Mutsuro or Bulk) if you need help.

What this addon does is basically allow us to sync up our joining of BG's, which lets us bypass the premade restrictions on battlegrounds. To use it, all premade members must stand at any battlemaster with the join window to the battleground open (but don't join!) - the premade leader does the rest.