Regarding:
"It [pH Perfect base nutes] was always off before anything was ever mixed in, and I tested with R/O and tap water.......I just purchased 2 fresh bottles of Advanced Nutritions PH Perfect A&B and I’ll post test results in a couple weeks."
I don't know what relevant testing you can do. What needs to be tested is performance, nutrient bioavailability, uptake, etc. without pH adjustment; and without lab testing growing plants is the only way for us to test the products' performance. Rather than mixing and testing pH (irrelevant), maybe grow some plants with the stuff? Not adding more salts to adjust pH seems a very worthy goal and might actually work well with the 420 Method?
[Note, I am not defending/supporting Adv. Nutr., their monopolistic pricing, marketing, corporate or leaders' behavior, etc. just noting that their stuff works as claimed for likely most users. Even just feeding the cheaper base Sensi (vs. the premium Connoisseur product line) bloom formulation from sprouting through harvest, exemplified by TaNg's classic related regimen(s) reported here on AFN, works well].