I have increased my hash rate yet again. I noticed there is a new version of GUIMiner that includes the Phoenix miner, which works better on my ATI cards. But again, I can't find info on what all the parameters do. Particularly the AGGRESSION parameter

EDIT: Ah, I found what I was looking for. It is within the link bellow, and the recommended settings for my card models works great.
http://forum.bitcoin.org/index.php?topic=6458.0Now my only question remaining is:
Does anyone recommend a pool that is better than DeepBit? I was reading that there is a high-efficiency mining setup for bitcoin-pool. Does anyone have experience with this?