Miner v0.9.8 runs for 2 days so far with no stability issues. OSes are Win7 and Win10, both x64.
The only problem as already mentioned here is too high difficulty shares for small rigs on lodiff port.
I have 1 rig of 6 * 1080 cards producing a total of 235Mh/s and another one of 3*1080+1*970 = 138Mh/s. Skunk algo.
For more powerful rig current diff setting of 1.24 seems fine, but still a bit high for the second. So I totally agree with your proposition to lower the diff on both ports. Or maybe add one more port for sublodiff miners?
Maybe provide some directions what port to choose based on hashrate of the rig? For example, less than 320 MH/s -> lodiff, 320 MH/s and more -> hidiff. Better solution would be to implement hashrate-based port switching within miner itself.
By the way I've started a comparison between CWI-pool/miner and Suprnova pool/palgin's miner. 3 cards from first rig directed to CWI and 3 cards to Suprnova. Same cards, intensity and PL/Clock settings, even same network latency. Started simultaneously. Initially thought that CWI will earn less because of that high diff issue (for 3 cards it becomes more important) or relatively low pool hashrate, but after 12 hours CWI leads by 2 coins despite 25 minutes downtime of the pool
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Keep up a great work! Much appreciated!