I've decided to make my own modded 6950 BIOS using RBE. My plan is to increase the upper limits on the card to 1000/1600 and to unlock the shaders. As far as the voltage goes, at the time I'm only using Power Control Settings in CCC, set to +10%. I was just wondering, should I increase the voltage in my custom BIOS, keep my PCS at +10%, or increase it to +20%? I don't seem to be having any stability issues, but I just want to be sure that I will be getting enough power to the card. Currently I'm only at 840/1300, but I'd like to get to at least 900/1400. What do you guys think?