I have the same problems, it looks like mined not even half of the amount 2 days ago.
Yeah, we have been growing by 10% per day, so if you are looking at your own numbers, that is obviously a mistake.
You would not want to compare apples to oranges.
It seems it's going better already, we mine blocks after blocks again with not very large gaps. so first i think it's related to the work in progress now.
The other pool minersofmen seems to be not working at all.
Well, technically I only saw maybe a 1% drop in hashpower during the maintenance, so imo, all the miners are still hitting the main pool (not a decrease of 30% as the "efficiency" number shows). I still think its related to longer block times. But you might be right, maybe the miners who are hitting the pool are solo mining 50% of the time due to the issues... We have to look and see if the avg block time increased from 7 minutes to say 10.