I don't understand how you are getting .7 out of the VRMs on firmware 0.94. I'm running 0.94 and have .9+v and don't see .7 unless I run 0.95.
I believe you have to do the secret handshake to get it to switch back to high volts once you go to .95+

It might need a hard reset or perhaps going to an earlier firmware first.. i kinda forget myself the surefire way of switching them back
My 8 vrm Jupiter never has the output voltage above .7*v
Is this the case with everyone else with 8 voltage regulators per board? I'm on .94 I've never taken a reading on .93 or .91 so I don't know if its better or worse. I don't want to play either as I'm getting 508gh/s showing on eligius 12hr! Now 24+hr with out reboot as well.