Washougal and polishpollack have you covered, but I'm bored and thought of a few quick things that may help...

Downturned leaves (the 'claw) are the first signs of your ph dropping. Yellowing will most likely follow. Transplanting into a larger container of fresh Sunshine Mix should carry you through to harvest. (it has ph buffers in the mix) Regardless of timing, if they need a transplant, give 'em a careful transplant.

Are you ph'ing the water before adding the nutrients and additives, or after?
If you are adjusting the ph after adding the nutrients, then fine. But if you are ph'ing the water, then adding the full shopping list of items, you are likely dropping the ph too low.

Too much of the humic acid product(s) will kill your plants.

Redundancies will add-up, which can kill a plant.

This is the problem I've had with companies like Advanced Nutrients for many years. They'll sell you a product that can easily damage a crop, then sell you the additive to correct the problems caused by the original product. Then sell you one to remedy non-existent problems stemming from the other crap they sold you as being a preventative. All in the name of growing the best cannabis in the world...?
Sorry, but around these parts they call that a "snake oil". (a useless line of products, marketed to decieve)

Please have your wife explain to you the difference between a chemical compound and an organic compound. (hint: a chemical compound is a chemical compound regardless of where it originated. And the plant could care less if it's needs are being met) The label "organic" is nothing more than another marketing tool designed to fool the consumer into thinking it's products are superior. They're not. They are no less nor no more harmful to the enviornment, either.

Soil probes are useless, but that's ok...they suck anyway. And if your Hannah kicks the bucket, I'd go with a more reliable one if possible. Do you have calibrating solution for the ph pen?

Nursery pots are rated in dry volume increments. Unlike 5 gallon buckets which are liquid volume increments. I can almost squish 2 - 5 gallon nursery pots of soil, into a 5 gallon paint bucket.

If water is from a well, there is no need to outgas the chlorine, which is why others let theirs sit-out. (it's an unnecessary step for you) Mix what you'll use that day.

Keep it simple. Plants LOVE simple.