Tested v.0.4c on win10 x64 and had a lot of warnings:
"WARNING: result for caaabd756 does not validate on CPU!"
I tested it with 2 x 1080ti evga ftw3 (one of 'em DT) and gave me around 3944 + 3413 MH/s (+150/-400/PL90)
AngryPool gave me about 6.3-6.6 MH/s out of 7.37 MH/s and 6.2%-6.7% rejected shares.