I been rambling on here for awhile through 3 generations of Skylake X CPU's Ending up with Cascade Lake X CPU. Good 
jump though the journey of Overclocking with experiences from 47 to 5ghz, and with all the appreciated advice, i decided to
follow a redditt from Intel about choosing your desired OC and sets voltages to Auto, and let it handle the rest. 
 
So Letting thing on Auto, setting the right Tjunction settings for my Chip, and avx offsets, and seems very stable at 5ghz all day.
vcore and adaptive, i get a real nice spread of voltages, and yes, the adaptive seems to work fine. It even shows offset, and target
in CPUHWinfo and shows under a harsh load , it will lower vcore and cpu frequency if needed under avx loads. 
 
This, to me seems the safest if you wanna jack up the cores, and even at lower cores, i tested it like: at 48 or 49 and Auto set vcore
finds a desired setting to avoid burning out.

Auto settings for voltage should be using the Intel VID table for the CPU, which my understanding is that is tested/created by Intel during manufacturing. In theory the auto settings should be safe and should give you an idea of how much voltage the CPU can take, but I have found the auto voltage settings to be way higher than needed. I am not sure if this EVGA being liberal with the voltage or Intel. I think with everything on AUTO in the BIOS that you are not going to hurt the CPU, but you can do better with some tweaking...   

This advantage with auto is, that when the limits of the CPU are meant, the offsets will allow intel to draw back voltage to help avoid
overheating.  I only see tjmax when running heavy loads like R20. Other then that: Everything seems to be mild.

True, I do like that 5ghz stable, and had an issue getting stable with manual voltages.