Nah, fuck sledgehammer. That shit is no bueno. Imagine a nutrient company that wants you to use that wacky feed chart, to create insane amounts of surpluses in the medium, so they give you some crap that wipes out all the nutrients in the medium, so you can turn around and keep doing the same thing anyway? You would be correct in you skepticism. For newer growers, it’s a ploy. Always use half of what ff nutes call for, and adjust up to what it wants. Fuck sledgehammer hammer. It causes tailspins.