It has been mentioned numerous times before in this thread that the 512 diff evens out in the long run.
Dare I say that the reason people might get slightly better results here as opposed to Hashcows is all down to the operator and his skills at exchanging and such.
Also your account is much more secure here than it would be at other multipools.
Completely agree, the diff means it takes longer to find, but u get a better reward. In the long run it evens out, 300k is fine.
This pool makes everyone good returns because H20 is doing a good job.