I think some of you should stop playing too much around and settle for maybe a few less S/s but better stability. Neither Genoil nor the pools are extremely stable at this point.

On my 4x 470s, the -k zec zec would crash the miner. I'm running without that parameter and get about 120-130S/s, but at least it runs stable. The more you try to tweak with this miner and pools, the less you're mining after all