Moving away from the negative hopefully.... I have an ROI question that I cannot figure out how to calculate. As I have stated, I am able to set up miners, but not really smart about them.

I own 4.8Ths that is already ROI, including electrical costs. I have pre-ordered two S3+ to (hopefully) ship around Sept 20. They were paid for with 1.16BTC generated by my mini-farm after it reached ROI (free BTC). I calculate them as 450GHs each or 900GHs for the equation.

That will bring my mini-farm up to 5.7THs. It has been established and is almost not arguable that a single S3+ cannot ROI by itself.

My question: As an added component to an existing farm, is it possible for the additional benefit of two S3+'s to the already income-producing condition to 'ever' benefit by 1.16BTC? I don't understand how to calculate existing hashing power into the ROI equation.

Thank you for any assistance. I also would like to apologize to JPChrist. I agree that personal attacks do not benefit the community and I look forward to learning from his helpful posts.

-OCS