I understand, I do. I appreciate everyone's continued help thus far. Let me just re state the facts of my current setup.
I have a desktop and a tupperdor. Both using 69 Boveda packs and the same brand Hygrometer. My desktop reads a perfect 69% and the tupperdor a 75%. Both are solid, they do not fluctuate. I have also switched up the hygrometers to test them. I place the original tupperdor hygro in the desktop and it drops to 69%. I place the original desktop hygro in the tupperdor and it jumps to 75%.