Yes Groestl algo i have no problem.
Skein algo tested on suprnova, miningpoolhub and now zpool have all the same problems : hashrate betwenn -30% and -10%. Average on 12h on any of these pools is 11,8GH instead of 14GH
i think problem is the network hashrate on the g28 configurations web page can view the hashrate is 14GH with skein algo and the orther with the same with specifications Skein algo tested on suprnova, miningpoolhub and now zpool have all the same problems : hashrate betwenn -30% and -10%. Average on 12h on any of these pools is 11,8GH instead of 14GH