novaguy, you may want to learn to differentiate between shitty trolls and serious posters.
The map question has been done to death. I'm sorry, but I just don't have the patience to answer it now. Maybe I'll come back later, maybe I won't. Wouldn't count on it.
As for north vs south-centric models: Both exist. The FAQ just states a north-centric model as the most commonly agreed upon one. However, there are models that set the South as the centre, and some of them even do both!