Doc, I'm digging the whole low potassium thing, but are you sure phosphorus should be in equal ppm to potassium? Let me put it like that, I'm starting to see basic soil's NPK as 3-1-2, with healhy biota in the soil and abundance of calcium carbonate, magnesium, silica etc. Would you say it's in the ball park or phosphorus should be brought up a bit? I've read some soil analysis where they stated 50-85 ppm of phosphorus as perfect for plant's growth, overabundance of this mineral being as bad as too much potassium and nitrogen. What I want to do this season is to start measuring Brix to see what's happening with metabolism, but I'll be doing it outdoor, which brings me to another question, Doc. I've read a lot of times that applying ProMix + EWC approach outdoor doesn't cut it, cause plants eat that for breakfast when growing. Could that be that with bigger plants need for potassium is bigger, cause they need much more nitrogen and phosphorus for sure? Just pondering this thought, but maybe you could answer that as I just applied organic calcium carbonate and crushed volcanic rock, some blood meal, and want to move towards EWC and bat guano, although I'd add just a touch, maybe an ounce per foot square. What do you think?