Running 2.8a since yesterday evening, very stable even with my weakest GPU (lowest ASIC rate), same stale shares rate as 2.7C (2% the last hour).

I tried claymore V11.5 and got a hung GPU after 45mn (RX 570 4GB 1150MHz core / 2070MHz mem with bios mod), the same GPU can mine for hours and hours with phoenix.

Therefore I keep on using phoenixminer.