I feel like my experience with this pool is far different than some others. My payouts have been consistently under the announced btc/mh. For instance, I moved my 2.7 mhs to the pool around 24 hours ago. My account already had a balance of around .007 btc and my payout today was only .0175 btc. I am not experiencing a large amount of hw errors or rejects. Today was the biggest discrepancy between the announced payout and my payout but I have almost always been lower than expected. I am using the same settings as I do on dozens of other pools where I consistently get paid approximately what I expect to get paid. This is the first multi pool I've used and it has been very disappointing. I'm pretty sure I would make way more just mining LTC.
I too have never seemed to get even close to the expected results from this. I mined here with about 2.8mhs - 0.1 mhs reject rate for over half a day, maybe 13 hours but currently my exchanged+unexchanged estimate is only 0.006. Extrapolate generously and I only get 0.012btc/day with 2.8mhs of power or 0.004btc/mhs/day which is just totally far away from any decent estimate.
As with you, I do not have any HW errors or unusually high rejects. Same settings with all other pools which give me no problem.
I have tried clevermining and the expected payouts were very accurate, despite it being rather low in profitability now. I just can't put a finger to this pool. I love the stats but the results just dont tally.
If you're only mining for 6-12 hours, of course your rates will differ. Many of the coins mined here take quite a while to confirm and clear the exchange, so it's very possible that coins we mine today will clear in tomorrow's stats. That was definitely the case with BC, and sometimes DOGE.
The number i post in the news is simply a 'best guess' based on my 1.3mhash rig (which I do move around between nscrypt/scrypt). Since we offer a ton of various options regarding what/when/how you mine, there's literally no way for me to calculate accurately what the btc/mhash is at any given time.