Fully agree: that should be 0.05V, however there's no risk to fry the CPU as the offset range is quite limitedJudging by the 1.3vcore I'm guessing it's 0.05v or something around that If the stock vcore for the CPU was 1v, with 0.5V offset, I think thats 1.5vcore?? I stick with fixed then you can't really go wrong Either way, I think you're doing fine and have nothing to worry about
I use the offset apporach as I like the cpu to be idling at 0.8V to be cooler and to go to 1.3V only when actually needed