Yooo 40% stales!! I would throw that rig outta the 14th floor bro.
Guys last night I started mining again on ethermine with the phoenixminer.
Since last week Ive been having a lot of problems with my rig, but luckily last night it seemed to be pretty stable and I was submitting maximum of 7 stales, around 6-7% of my speed, which I consider a real win. If you want try to mine with that miner also.
I have also had a lot of problems with the Claymore's miner due to always freezing and crashing the rig - that's why I switched.
Just try and tell me if that has resolved at some level the issue.
Wish you all a happy and not-so-much-stale-share-submitting mining