I will definitely say one thing. Overclocking my P8P67 Pro is like a heavenly dream compared to the past two months I have had to with these EVGA SR-2's. Being able to just throw it to 5GHz right off the bat is a wonderful feeling.
Welp, I got home today and it rebooted itself while Folding.
I made some tweaks and it looks to be at least 3 hrs stable at:
48 x 100
1.375 Vcore BIOS
+0.025 V Turbo Boost Voltage (in the advanced CPU settings)
Remaining settings are the same.
It appears to have made my full load voltage more stable. CPU-Z reports 1.360V with the occasional dip to 1.35x.