THERE IS A NEW YIIMP AUTO-SWITCHING POOL--
"THE HASH REFINERY" is a new pool using the YIIMP software. The link is:
http://pool.hashrefinery.com/Personally, I have not tried it, but the fact that it allows CCminer auto-switching and coin exchange makes it an item of interest.
As for Zpool, many miners complained about skewed statistics and loss of accumulated coins prior to exchange. I lost coins there, complained in the BitCoinTalk thread, and other miners did as well. After creating a MinerControl script just for Zpool and mining with good profit for a week or two, it was sad to see the pool and profits go sour because of some poolside adjustments.
I hope that this new pool works well. YIIMP software may not be the easiest thing to manage. I'll look into pointing a rig or two at The Hash Refinery when I finish some rig building. --scryptr