You have the higher hash rate, which means that if your contributed rate is the same you get a smaller piece of the pie. But the higher pool hash helps mitigate the effect of increased difficulty.
that is not true
Take a look at the stats page:
2014-09-08 - 3 blocks
2014-09-09 - 3 blocks
2014-09-10 - 5 blocks
2014-09-11 - 5 blocks
on average 4 blocks per day and then the hashrate increase with 33% = expected 6 blocks per day
2014-09-12 - 8 blocks
2014-09-13 (half the day) - 4 blocks = 6 blocks average ... and the day is not over yet
Before 2014-09-12 I got 0.002 per round and now it's down to 0.00135 or 0.008 per day before and 0.0081 per day now ... as you can it's more NOW than BEFORE
Don't trust me - do the math yourself
@Datelli cold figures from the day i have started mining - the difficulty was ~700k and now it is 27428630902, the BTC price was ~0.05$ and now it's ~500$, but the mining is still not dead and makes sense?