QUOTE (Maelstrom @ Jun 18 2010, 09:12 PM)

Provided you confirm before the bump I guess
Negative. After the bump, the player list is dynamic. You will still move to the same spot you would have if you'd confirmed before the bump. The bump happens to give everyone a pretty good idea of where they'll be placed.
(That said, confirm ASAP anyway. We love to know what numbers to expect, and you don't want to forget)