BTW, did you all notice that the next estimated block reward has now dropped to 508?
I think 1GH changing the sample miner string is at least working to some extent.
The
votes displayed at zhpool are kind of interesting, too. 1, 512, 1024.. not much in between.
The defaults in zhpool's packages are 1024 (cgminer), 512 (ccminer, x86 and x64) and 512 (CPU - all of them)