Maybe they are letting people on in "waves".
What's the best way to stress test the servers. Let 1000 people on, see how it performs. Let another 1000 on, see how it does. Let another 1000 on, etc.. Keep doing this and see how it performs every time 1000 (or some other number) is added to the server.
Then once you have these figures, then you start playing with the server stats until you get what you want.
Omusa - 66 Tauren Hunter - Illidan
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Seoman - 70 Dwarf Warrior - Anetheron
Seomusa - 26 Draenai Shaman - Anetheron
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