ROI
LOL
It is just experiment/test so what is funny in my counting..
It would help to know what exactly it is that you're "counting". Those are clearly not scrypt.cc numbers because you didn't include regular reward "halving" into your calculation, not to mention withdrawal throttling, auto-reinvest, etc.
I turn off auto-reinvest and i count 0.001 fee for withdrawal. But i don't know what mean "regular reward halving"?
I have had a small withdrawal in "ETA:20min" mode since 2015-10-23 09:13:21
So don't expect you'll get anything from this site