12 minutes per hour is 20% a day that goes for the dev.
LOL, just use awesomeMiner which is free to use. It has all the bells and whistles + many more features.
i would counter with: why is Nicehash popular? because they pay well? NOT.
because they have a "one-click" GUI
This is the same.
Awesomeminer is well, awesome, but takes hours, PER rig, to setup.
NO thanks. i have way too much going on to individually put up to 3 hours into 30+ rigs....
this miner, goes to zpool, a auto-convert BTC pool, which i was doing by hand anyways... other pools are already mentioned to be planned as well
so this saves me alot of trouble personally
and also, your math is bad, it was clear in the op it was around 1% (variations can touch 2% sometimes) which is considered "acceptable industry standard" for crypto-services usually ;p