I'm still trying to wrap my head around DG scoring... I'm doing very well at EMC, so I'm definitely not complaining.. Just trying to understand.
That really short block, as a perfect example..
uzgen 162821
(379) 19:31:23
2012-01-18 00:01:41 2777 99.78% 44/120 8 0.04907340
(-193.52%) 0.00024660
0.27% avg
Total shares = 2777
My shares = 8
Proportional = (8/2777)*50 = 0.14404033 BTC
My DG Payout = 0.04907340 BTC
Why does DG yield such a poor payout in this instance? 1/3 what pure proportional would have paid..
I'd need more data (and time) to give a definitive answer, but it looks like you're seeing variance in the number of shares you found. Let's say you have about 0.1% of the pool's total hashrate, so in a period of 2777 shares you'd expect to find 3 shares. DGM reward is influenced by your past work so will be comparable to that average. But if you were lucky and got 8 shares (which is definitely within the realm of possibility, chance for a Poisson variable with mean 3 to be at least 8 is 1.2%), your proportional reward will be much higher.
Additionally, it seems like the %prop stat may be .. wrong.. or at least misleading.. -193% of anything would be a subzero number..
-65.93% would seem more appropriate.. 65.93% less than what pure proportional would have been..
(.14404033 - .04907340) / .14404033 = 65.93
Maybe it's misleading, but it looks like it simply gives a percentage with DGM payout as the base, that is .14404033 - 193.52% * 0.04907340 = 0.04907340.