[zcaveman]

I would advise you to check with your Weed care person to see what the watering cycles should be. NOT your lawn mower person but your weed care person. Mine told me that the spray sprinklers (left to right) need more time than the local spray (up and down) sprinklers because they have to cover a larger area and need more time to water the same area as an up and down sprinkler would need.

However, when the morning dew or the rain god is doing the watering, I turn the entire system off.

Do not depend on the rain sensor to turn off the system as I have seen plenty of yards being watered when it is raining.