Claymore 11.5 is much more stable with lower stale shares on dual mining ETH+XVG 8gpu RX580, win10 64 rig.
what total hash are you getting for ETH and what's for XVG?
Average stale shares per hour if you may.
I get 249mhs for ETH and 12465mhs for XVG. On 11.5 i get 1-2 stale share, on 11.6 i had 4-7 stales.