Mined about 21 hours on ypool with v4.0 on my Gigabyte OC R9 280X and Sapphire HD7950. Even though I found no blocks, quite happy with the results here. Thanks again, Claymore!
R9 280X: 990/1375 @ 1.094V
════════════════════════════════════════════════
Sat Apr 26 02:51:30 2014
New Block: 511487 - Current Diff: 10.830130
Total/Valid shares: [ 2055 / 1970 ] - Max diff: 10.801474
[ 4ch] [ 7ch] [ 8ch] [ 9ch] [ 10ch] [ 11ch] [ 12ch]
Total: [ 2802K] [ 1867] [ 163] [ 22] [ 4] [ 0] [ 0]
ch/h: [ 133325] [ 88.815] [ 7.754] [ 1.047] [ 0.190] [ 0.000] [ 0.000]
Estimated CPD: 1.5313, Average CPD: 4.5668, Mining time: 21:01
════════════════════════════════════════════════
7950: 990/1375 @ 0.988V
════════════════════════════════════════════════
Sat Apr 26 02:51:29 2014
New Block: 511487 - Current Diff: 10.830130
Total/Valid shares: [ 1866 / 1804 ] - Max diff: 10.801638
[ 4ch] [ 7ch] [ 8ch] [ 9ch] [ 10ch] [ 11ch] [ 12ch]
Total: [ 2481K] [ 1705] [ 145] [ 13] [ 3] [ 0] [ 0]
ch/h: [ 118084] [ 81.142] [ 6.901] [ 0.619] [ 0.143] [ 0.000] [ 0.000]
Estimated CPD: 1.3990, Average CPD: 3.4265, Mining time: 21:00
════════════════════════════════════════════════