Thank you for finding the typo. At the moment CM is at 0.00260, EP is at 0.00364. Personally I find the difference at least interesting, although I cannot speak for others.

About guaranteed profitability, when a large increase in hash power occurs there is a delay (from a couple of hours up to 6 hours) in income increase. This is caused by the time it takes for coins to mature and be exchanged. During this period the pool will suffer an artificial drop in profitability, which will be corrected as soon as the coins start coming in. This happens because of the way profitability is calculated (average 24h pool income/average 24h pool hashrate). The pool average hash increases immediately while pool income has to mature.

Mining consistently for 24 hours or more will neutralize this effect and for this reason I believe there is no need for a guaranteed profitability. If you are looking for a more reliable indicator than daily average profitability please consider the 7 days average profitability on the main page (currently 0.003252).

Happy mining!