I am not sure if anyone here has seen the software hack to unlock 1.3v For most reference cards.
You have to download and install the newest beta of MSI afterburner and then edit two lines in the MSI .cfg file.
Walahhh restart afterburner and you should be golden.
I have done this with my EVGA sc ACX and It works. I have made several passes with valley running 1.225v @ 1215 core and 3086 ram. All air hitting around 68f.
I can post more info after I get cleaned up from work.