Thanks for your reply.
No, I am not confident about the secondary settings at all. The irrigation system was installed by the builder who, if the rest of the house plumbing is any indication, knew nothing about irrigation. The soils are of mixed type within watering zones as are the plant materials. I am not up for re-doing the irrigation system.
What I would like to do is get the system running and then adjust watering duration based on the visual health of the landscape. It's what I've always done with the manual system. My hope is that once it's up and running, and using the actual weather data, that it will take care of itself.