You are all probably right in your climates. I noticed that all the comments on this thread or topic came from fairly cool climates.
If it were in a hot climate or Texas, you would probably just have to run the irrigation system longer. In Houston, We pay a lot for our water. High water bills. I got one to prove it. I am always on my schedule and I turn off when I can, but the foundation requires a fair amount of water or it will shift or move.
We have to design to get it done with water conservation and without waste, the best way to do that here is head to head.
I am really starting to get in to the Hunter MP Rotator and the Toro Precision series nozzle because I pay a lot for my water. Some of the other cities around Houston don't pay that much yet. It is coming.
What is a lot? 250$ per month for 3 or 4 times a week on 7 zones, and a couple of showers every day, and some laundry.
It is a lot to me, for water. It is coming to us all, I probably am just lucky and got it first.
Stepping down from my soap box, have a great year everybody!!