I am very impressed as well. What I do see though, is not a nitrogen green. That is the kind of green from giving grass the right form, rate and ratio of micronutrients. Technically, my soils test moderate to high in iron. However, that iron is never available to the grass. If I want green, I had better be spraying iron, in addition to the NPK. It had also better be chelated.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738