I've set up keccak on a YIIMP pool. With pool difficulty set at 1024 (the same setting that the official SmartCash pools use), ccminer was getting about 50% bad shares due to low difficulty. We found the batch file has to use the "-m 2" switch to multiply the difficulty, or manually set difficulty higher to resolve this problem. Setting the pool difficulty to 2048 did not help.

People are having problems dual-mining ETH and SMART due to this 50% bad shares due to low difficulty issue. I can't find a difficulty multiplier param or difficulty modification param for Claymore miner. Does something like this exist?

Anyone know what might help me fix this problem on the pool?

Thanks