Thanks.  I will look for a drop and order again. I was able to set up some at my friends office.

I think I can run 4 at his place   with under volt and down clock .  I can get 600 gh and 800 watts.

He shares a building 4 ways and splits the power bill 4 ways.

  so I am getting power at 4 cents a k watt in his place vs 16 cents in my home.

 my limit would be 4 units in his office but at 4 cents a k watt I smell roi.