In regards to the potassium concerns, the Roots soil has greensand, and this mix is just basically kicked up Roots. Most of the stuff you add is already in there. It has bat guano, earth worm castings, fish bone meal, feather meal (similar to blood meal, high N organic), glacial rock dust (similar to the azomite, mineral compound), humic acid. The N and P are being raised by additives but the K does not need to because you are letting the greensand sit and release for 2 months constantly increasing the supply.
I noticed you have made changes to this recipe, but never made mention of the effects that you noticed from the changes. What difference do you see using the revised mix on page 25 as opposed to the original one on page 1? I noticed it has been diluted 33% did you find it too strong? Just curious. Thanks