I topped this week, but should have waited until there was one more set of fan leaves. In my nutrient line up I add Armor SI first, wait about an hour for that to dissolve, add CaliMagic, then begin adding base nutrients starting with Micro, then Gro, then Bloom. Then I add FL+. After that I add Diamond Nectar. Then I add 2.5ml/gal Yucca wetting agent (Hygea Hydration). Wait about 20 minutes then adjust pH. After adjusting pH add RapidStart (or Clonex, they're almost exactly the same. I use Clonex.) Then I add 2.5ml/gal of H202. If your EC is too high at this point, use pH corrected r/o or distilled water to thin it out.