So I'm using 6 Nvidia GTX 1070 Ti 8 GB graphics cards and it seems to be hashing steady at 2.7 kH/s with a huge up and down swing during each ten minute segment on Flypool but the average is right steady at 2.7 over the past few weeks.

I'm a bit of a tech noob (more of a numbers guy) but seem to have been able to cobble together a system that works following a bunch of guides from online sources.

I thought my electricity was going to be more the first month. It ended up costing me $52 USD and I had planned on spending $75. I was able to extract a bit over 1.15 ZEC during the first full month of operation. So the rig is profitable as is--but the upfront cost was higher than I wanted. At this rate (and if ZEC doesn't drop or skyrocket) then I'm about 15 months to break even. I figure that's pretty decent return on my investment. Good enough that I'm considering setting up a second one. Like everything, it depends on funds and time.