You can do the programming yourself Hunter has U tube videos of every option you can set it's very simple.
None of these installers tell you of these options, they keep it very simple because we are old and too dumb to understand
Tri county did mine they spent 10 minutes after I watched the U tube instructions I found how incorrectly they set it up.
Also U need to add a 9V battery to the unit so you don't lose your setting.
It is a great system, remember the best time of day to start the watering is early am about 5 or so not at night like see so many kick on, that can cause problems.
The zones with rotators need twice the time of standard head sprays.
DO NOT bypass the rain sensor.......