Ive used the 1 Part, but use the MC 2 Part since 2019, tested a lot of Nutrient Lines over the Years, for the Price/Performance its hard to beat, imo I would call it in the top 5 - I run it in Coco and DWC, always healthy plants in the Garden, I use pt A/B and Sweet Candy as a Pt C and call this my base formula (A/B/C). Ive never had to add addl cal/mag as the Pt B is 15-0-0 Cal/Nit, high in Calcium - (from memory I want to say 19% Ca) - The A/B mixes with a mild yellow tint, Adding the Sweet Candy will give it a mild brownish tint, but in the rez after aeration looks crystal clear.
As far as pH stability in DWC it will drift some until root mass gets bigger, but I also dont chase pH like a lot of growers, I mix my solution and pH at 5.8 and I let it drift along the pH scale up and/or down and only adjust it back to 5.8 if it goes out of range, (under 5.5 or over 6.8), the drift within range is perfectly fine and even helpful for nutrient availability/uptake. I only use the MegaCrop and
Power Si in the Gardens, it doesn't get any simpler than that! (i do use
MOAB but only twice during each grow at 21 days and at wk 5 F)
the nutrient calculator on the website is especially useful for dialing in, or targeting growth phases - Excellent Product! I wont use anything else!
#megacrop