Good luck with that.
Those who get in first and fast make the most money. I profit 1200-1400 after electric costs a month, the total intake from my machines is about 1700-1800 on ZEC. Using custom firmware on all my machines has helped and increased my speeds from in the origional 440k/sol range to over 455k/sol. That extra little speed can make up for the electric cost per day providing more profit in the end.
4x Z9's Mini's (2 Batch 1 and 2 Batch 4)
2x Z9's Full Batch 1
2x Z11's Batch 1
Let's go with some conservative numbers for overclocks...
4x Minis @ 15kSol each = 60kSol
2x Z9 @ 55kSol each = 110kSol
2z Z11s @ each...
"over 455kSol" total means the 2x Z11s must be 455-170 or 285kSol.. 285/2 = 142.5kSol/each.
Weird.
-j