Newest release has been working great on 4 rigs! Win 7 (4 cards) win 8 (7 cards) and win 10 (12 cards) pretty mixed bag of nvidia cards 1060s 3gb are working good too.
My Efficiency: 100.00 % everytime I look
Temps are very low, way more solid then the old algo.
Might save some cash on the electric bill this month too

Can you share your overclock settings:
Which Card, power draw, core clock and memory clock ?