Originally Posted by TwoCables
From what I've learned, the Offset is calculated by finding the difference between the VID under full load (not to be confused with the core voltage), and the idle voltage while using a manual core voltage
Should be the difference between the VID at load and the manual load voltage required for stability. You wrote idle by mistake there. So if you need 1.25V for stability and your load VID is 1.20, you'd want a +0.05 offset, or if your VID is 1.25V and you only need 1.20V for stability, then it is a -0.05 offset.
Personally, I don't like trying to calculate it from the VID. becuase, I think it is easier to just set a small offset initially, then see what voltage that provides and adjust the offset accordingly. Takes LLC out of the equation, and is only one extra step (assuming you would get it right the first time with the VID method). Both ways work though.