I would try upping the voltage in steps of .05 to a max of 1.25 to see if that brings the chips to life.

I see you have the clock set to low, or else it's forcing itself down. Make sure to set it high and then reset afterward, inbetween each voltage increase. When I was tuning mine, after every reset I had to wait a few seconds (10 I think) for the blade to put itself under load. I'm sure you're doing the same, but just a general reminder to use the voltage readings  while it's under load.

The only other suggestion I would make is to take away the 2 fans blowing on the faces of the blade and let the one blowing across do the work, unless they're all really low output, less than 55CFM let's say. 70+ CFM blowing air in a cross manner like that might cause too much disturbance and prevent good air cooling.

You couldn't tell my blades are under full load by touching them, they barely register a noticable warmth to the touch.

I mention this because I've noticed on the Gen1 blades, even slight warmth can kill performance. Before I changed my fan setup they were "somewhat warm" to the touch, but would sometimes be stuck around 5-8GH. New fan setup, and they're 14GH+, effective rate of around 11-12.