I have added some more speed. (around 4-5% faster than sp-mod #1 on gtx 1070,1080,1080ti)
Signatum sp-mod #2 (0.05BTC) private miner:
gtx 1080ti , 50MHASH @210 watt..
8 x 1080 TIs NON FE

pm for details on how to get it.
Works great. nVidia miners must use it .