Hey Lost, ive only got one good run in since I bought a 25# bag of each part A and B at the beginning of last summer, so Ill be running it for a few years at the least. Shipping was $50 but im happy, $155 for 50#s directly from Jacks. I grew all my veggies in coco with the same 3-2-1 mix too. I did an outdoor RDWC scrogged greenhouse run and it was healthy as can be, veggies all produced well too. Barely used any epsoms, mostly with the veggies.
Its so easy I just add scoops of a and b to 2 different water jugs, shake it up, and use my TDS meter to adjust my target ratios by PPM. No messing around and measuring by weight. I could pre measure my stock mixes out and know how many PPMs i'll get per gallon by how many mils I add, but its to easy to just use my meter lol.
Id say thats the best part is being able to change the ratios with more or less calnit depending on what stage of growth compared to running seperate grow and bloom dry nutrients.
Say im vegging and my target is 500 ppm, i just add the 5-12-26 until I hit 300, then too it off with cal-nit until its at 500.
For 600: 360 ppms part A, and 240 of B.
They have new formulations too for different water sources and growth stages
@ jacksnutrients.com, but not much info on anyone using them yet...
Hmmm I wasn't aware they made an A and B formula only seen the hydroponic and cal nit are you using the other brand of cal nit? Heard it was better for some reason. What about Magnesium? Is that what you are using epsom for then?