Ok, the last thing you need to think about in your settings is the nozzle type. If you selected the “Emitter” from the default list, you’ll see that it’ll water 0.5 inches per hour. Unfortunately there is no clear number to select based off your emitters’ GPH. And obviously your 0.5 GPH will put out far less than your 2 GPH… but you are also watering to a greater depth with your 2GPH for your trees… again, no clear answers @azdavidr setup another great reference to play around with your custom nozzle settings once you are familiar with things
I think your best bet is to leave the Emitter setting at the default 0.5 and you can play around w/ that later.
Do you want to test out the Flex daily with just 1 zone vs putting them all on the schedule right away? Some people like doing a test sample