I have a suggestion; The more feathers you have, the increase of fly speed. Eg: one feather = 0.5 speed, another = 1.0, and so on.
2011-05-21 15:39:32 [INFO] Starting minecraft server version Beta 1.5_02 2011-05-21 15:39:32 [INFO] Loading properties 2011-05-21 15:39:32 [INFO]...
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