Sent an offer a couple days ago and have heard nothing back yet either. I was offering S3s S4s and Sp20s. I will update this if they do get back sometime this week.
I live on the west coast and also have been successfully mining with this pool for months. It is very consistent compared to other pools in my experience.
How did you guys connect a different power supply to your S4? I think I had a power surge and one of my S4s wont turn on anymore and I want to see if it works with a 1600 watt EVGA PSU. Do I just connect the PCIE cables to the hash boards and then turn on the PSU? I assume the LED screen will no longer turn on as well since it is connected to the factory PSU.