On your Excel spreadsheet you show Rockminer R3 Box (4) having a total hash rate of 2.7 THs (or 675 GHs per unit), but Rockminer's site shows their hash rate to be 450 - 480 GHs each. Multiply this by 4 and you get 1,800 - 1920 GHs, or 1.8 - 1.92 THs. Do these actually Overclock up to 2.7 THs? That would be a 40% hashing power increase over stock (480 GHs).
Secondly, you show the Rockminers as being overclocked at the astounding rate of 2.7 THs, yet the other miners are shown stock. This isn't Apples to Apples.
Your work looks great, I'm just not sure it's completely accurate or unbiased.
If you click to the order page where the specs are shown, they advertise the 2700 GHs. I only bumped values if the manufacturer made a claim based upon buyers experience, or if I saw that users had reported that this was more typical. For instance, my S3+ machines work at 503 GHs, so that is how I listed it. Keep in mind this is for me. Utilize it if you desire and change it to suit your needs.
Again, no need to complain about the accuracy. I am not selling anything. I am sharing it. Use it or don't. Show me a better tool you developed or found and maybe I will use that instead.
Dan