Welp -- it ain't gunna be powder blue or powder grey like the old days. I still remember my pants being stiffer than a board.
For most lawns >> R-1 will be 17-0-5 50% XCU (Agrium) with 0.38 Barricade. R-2 will be slow release fert with several other nutrients to retain turf color/health during late spring. Barricade is a no brainer for us, cuz it has never let us down. Same with our post emergent weed controls -- got that nailed down too.
It's the "nutrient issue" that I need to learn more about. Problem there is -- so many variables. Even land grant universities and fert companies disagree. (and I can't blame them)
Still waiting for my FREE T-shirt