Outplaying (Midwinter did an awesome job this tier) and various problems had in the tier by other guilds as well (Exodus disbanded as a 25man raidguild which meant it had inner problems. Envy, the other guild behind them in world progress, basically had 4 of his core raiders help method for their first kill). But again:
Are racials so much important to you that they have to be yet another imbalance between players?