Opie, ypu you are right about the calmag+ (replenish essential elements removed by R-O process.

my recipe is:
0- 5- 10,
grow, micro, bloom
10ml per gallon Liquid karma
5-10ml per gallon calmag+
Hygrozyme. follow directions.

for Organic Hydro/Soil I substitute, Pure Blend Pro for 3-part.
Pure blend Pro...come in either Soil and /or Hydro formula; the difference is the PH buffers. basically, and there is a tweak to formula due to bacterias/microbes located in soil.

Remember, you can always use the full values on bottles, but have to watch EC/ppm if you use alot of additives.
A safe way to start is Use 50%-75% ratio recommended on bottle. hope this helps.