Buds looks amazing, you’re killing it!
Yeah not the easiest thing to get right and very subjective. I think the guys in the Grove Bags for curing thread have come across a better way to test the buds for moisture content using a moisture meter, which I will be testing with my next harvest, could be very useful in determining when to stop drying.
This kind of moisture meter:
https://www.amazon.com/gp/product/B00275F5O2/
The Grove Bags thread