Yeah, I was never able to do well without the FloraGro during flowering.
And Your formula looks good, but I thought I'd mention a couple of things. That seems like too much Superthrive, and not enough Diamond Nectar. I use Superthrive at 1-2 drops/gallon, and fulvic acid, (not GH's) at 20 ml/gal. What does the Diamond Nectar label say? Also, you should increase the Micro some during flowering, and that will help with Cal, Mag, and Sulfur.
HTH
