You don't get it. Applying anything to ornamental turf is a waste in my opinion. Whether it be trucking in tons of compost or bags of fertilizer. A 20lb bag coming from Iowa or wherever is about as bad as a half ton load being trucked in locally. I understand what I'm doing is purely for aesthetic purposes and I'm fine with that. I make no allusions that maintaining a non native lawn is not natural. The grains could be used to feed livestock, the compost better used at local farms to grow food. Like I've said before, I could add nothing to my lawn and still have a decent looking lawn. I put the effort in, and others hire people to get better than decent results. You previously said you spend a lot of time in the irrigation forum. Since you're in Zone 9 CA, an area that needs to import water, you must spend your time there insisting people rip out or at least never use their sprinkler systems whenever they ask for help with their lawn irrigation system right? To do otherwise would seem hypocritical based on some of you statements here.