I be used GP since day one and had nothing but amazing results until my supplier quit carrying their line. I had to quit the a b line and switch too the Medi 1 line and to be honest I found it even better and way more forgiving for soilless (pro mix xp). And the same as before, I had to switch again too the 3 part system because of availability ( this way I can still use up the micro s and additives from the previous 2 entire lines of theirs I bought...) As you can tell I m not impressed about the whole situation, and to add insult to injury my run with the 3 part system is not doing well..... burnt up bad! Partly my fault,I just assumed this new line would be as user friendly as the past 2 lines of their s I ran, I should have been checking runoff from day one, especially after taking a couple months off from growing!
I d suggest the Medi 1 line to anyone, I was averaging 5oz. a plant and up to 7 at the most..... and I'm a rookie at this game. Check out my gong show of a perpetual grow if you want to learn a bunch from my mistakes....I started out with miracle grow in a scrog, lmao, then found this site and never looked back!