And very important benefit from voltage control
If i slightly undervolt, i can then overclock to higher frequencies. It has a max amp/power limitation.
My batch 2 could never hold stable anything above 650Mhz. I can do 737Mhz now.
Batch 1 owners should be able to go as high as 800Mhz.
An important note is more important than frequency is your share rate -- which is more important than hash rate.
This is not to dismiss your statement on overclocking, as more should be "Better" -- but I agree that their voltage/frequency curves may not be ideal.
As I told you in PM, bitmain has attempted to hide the software interfaces for I2C, which means communications with the PIC and voltage controller, as well as fans, are obscured at a minimum.
I have some ideas and some pointers on breaking down that wall, but I have to lock down some other components of my work before I move to this more esoteric (yet valuable) work.
Thank you,
Jason