I second the Embark. 25-75 Gdd base 50. Start counting after we mow off the winter fluff and the turf is beginning to grow a bit and will follow up one month after the first app with another. Greens 3 oz/ac and fairways at 4 oz/ac. I spray no Fe on our property. I prefer to see our true plant color, even if that color is Orange in the spring. Orange turf is fast turf
I am likely going to play with one more app this season. Not so much for the seedhead control but for the regulation.
Best of luck, regardless of which product you choose it is certainly a crap shoot in many cases but Embark does seem to be more reliable.