Looks like you are well on your way! You are on the right track with the zone type. Since you have a mixture of vegetation, you kind of need to error on the side of the most needy. It won’t be the most ideal watering for the larger trees, but it is what it is.
In looking at the soil type, I’m not familiar with Gilman Loam, but a Google search calls it a “course loam” as part of an alluvial fan. To me, I’d read that as a sandy loam?
I personally like to play with root depth to make adjustments, because in my tiny brain, I can visually see how it changes things. The deeper the roots, the less frequent it will water, but it waters for more time to get that water down deep to the roots. Just the opposite for shallow roots. How established are your plants, and what was your watering schedule prior? If you watered the plants multiple times a week for an hour, your roots didn’t have much incentive to dig deep, so you might want to adjust them up a bit. This will increase the frequency of watering. This is the biggest mistake people make (in my opinion) switching to Rachio. If you watered incorrectly with your old controller, you need to re-teach your plants, and this can take months.
Last item I would look at is your nozzle inches per hour. .5 seems a bit high. I suggest taking a look at this thread, and crunch some numbers in the calculator that @azdavidr created. Works wonderfully!