I used to use the 1.37mod bios until I saw the 1.41mod posted. Unfortunately in 1.37mod the voltage increase settings do not stick if you use anything above 10%.
I did notice that the 1.2 bios (which used straight up values for vcore 1.65v, 1.75v, 1.85v) gave me voltage readings closer to the value I set. Right now 1.550v + 10% gives me 1.63v in the bios.