I really highly suggest following the GH feed chart on low. Equal amounts of all 3 bloom micro and grow is a transition mix, thats what it should be when you are about to switch to flower. So are you flipping in a week? Also, all new growers always feel like they should be doi "more" for the plant. More nutes, more watering, more everything because you want them to do good and you just want to do more to help them trhive. You need to remember to take a breath and stand back. Adding more nutes is usually not the right answer unless you have a deficiency and in some cases not even then. Let the plants tell you what they need. Keep the res where its at and watch the plants for signs of nutrient + or -, watch for tip burn. Always start with half the recommended amount and give more if the look like they need it.