@Ambros,
You are right. It's does not impact ETH performances at all. I use 6 x Nvidia 1070 and ETH hash is very stable with 32 Mh/s per card and -dcri is between 45 and 47 (about 3000 H/s b2s for all GPU). Power consumption is the same as it is for solo mining 800-810w/per hour measured from the wall.
@doktor83,
your pool steal shares as many others do. For 12h of mining on
http://xvgminingclub.info I got more then double number of XVG than I got on your or antimine pool. Because their unannounced "maintenance" last night I have moved to new pool -
https://premiumminer.com Hope this will be decent place otherwise I will quit dual mining because I don't want to be good sheep and give someone 30-50% of my earnings.