One observable benefit of a prescription all liquid program is the reduction of disease. The worst offenders in my area are dollar spot, leaf spot and Take All Patch. Not managing these issues with smart fertilization practices and irrigation means that a lawn can be on fungicides 12 months out of the year. Since going to all liquids, I only have occasional trouble with dollar spot and that is if it is rainy and hot for more than a few days. It is rare for the weather to be that way. Its either raining and cold or hot and dry.
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