This is where i got lost with mg, the bags all say feeds up to 3 months, and a veg stage is nowhere 3 months. I felt like if i woulda kept my plants in mg during flower i would have misjudged how many nutrients were left in the medium. And of course with mg you cant flush the nutrients out because watering them is how you release the time release nutrients. How do you figure out how much nutrients you need to add come flower? Or do you just start super low str?
That's exactly why I use MG Bloom Booster for flowering. Just follow the instructions and let them grow. I've messed around with this Nute combination, adding a little extra, thinking the plant would do better; WRONG!!! The box clearly states, use the indoor scoop and don't use more than required. Remember, with growing MJ, "Less is MORE." MG knows there are time released nutes in the soil, so their product is meant for this soil. Someone else on this Forum brought this subject up, and too me, it made total sense to stick with nutes designed for the soil I'm using.
Another thing I've noticed on this Forum, growers complain about having little to no nitrogen in their nute mixture for flowering, but MG Bloom Booster has nitrogen in the mix.
I read your other post about flushing, and you are correct. Flushing this soil won't do anything but release the nutes. Out of 3 grows and 9 plants, I've never needed to flush this soil. IMO, people seem to try to hard with MG instead of just letting the soil do its own thing. Don't water too much, and NO NUTES UNTIL FLOWERING!
I also don't recommend watering till water is pouring out of the bottom of your pot/grow bag. Water until soaked, and slightly coming out of the bottom drain holes, or if you are using Smart Pots like I am, I just make sure the bottom of the bag is wet, with only a few drips. Over watering will drain all of the "Goodies" out of the soil, and I want all of the Goodies to make into my plant(s).