Saliva adrenal panel results not lining up with HTMA results?

I was hoping that I could maybe get something clarified that I've been stumped by for weeks...

My mother and I both had a 4 point saliva adrenal panel done, which showed that both of us have low cortisol (total cortisol output for the day was similar, although mine was a few points lower).

But, my HTMA showed that my adrenals are less 'stressed' than my mothers. Based on our symptoms though, the saliva test seems to align with our symptoms more.

ADRENAL SALIVA RESULTS
06:00 - 8:00 AM--->11 (Depressed) 13-24 nM
11:00 - 1:00 PM--->4 (Depressed) 5-10 nM
04:00 - 05:00 PM-->4 (Normal) 3-8 nM
10:00 - Midnight-->1 (Normal) 1-4 nM

Total Cortisol Output: 20 (22 - 46 nM)