The more i look at it, im thinking the shares set up skews towards high powered miners. Still to prove it with some maths and tests. Last exam is on Tuesday. After that I can have a proper look.
If a pool is biased in favor of high performance miners, it is not a fair pool and should be abandoned by all but the single highest performing miner.
As far as I can see this is not the case. I have only 1.3 and I can't call myself high powered miner but fast enough to luck not to play any effect. So when I have no problems I can use total reword/total shares*my shares and see minimal difference... But I do see hi penalty if I have any connection problems at the end of the run.
Hi performance and good connections usually goes hand in hand... So that why you might have that filing...