bitclockers pool has 3 seperate servers, 2 in the US and 1 in the czech republic maybe have a word with them as its a great feature which makes it fully redundant too 
But they don't payout immediately as part of the same block you worked on 
however that means something is off with my calculations: the bitcoin mining calculator shows .56 btc per 24 hours of 240mh/s, whereas on the pool it's only .36, which is a big enough difference to question rentability...
The estimate isn't per 24 hours, it's per-block; right now, Europe should find a block on average every 21 hours, which works out to 0.41 BTC every 24. You should see your estimate creep up (possibly slowly) toward the point where it reaches the full .56 BTC per 24 hours (which would be .49 BTC per 21).