@Tomtennant I like the idea, and our developers are hard at work on improving the interface to be more user friendly and intuitive.
In the meantime, as @sprinklerman suggested I recommend taking a look at our Advanced Zone Settings support article. It can take some fine tuning at first, but once you've tweaked your individual zones and found that sweet spot I think you'll find that you're getting the most optimal amount of watering!
After reviewing your account I see you're still utilizing the default thresholds for the Allowed Depletion and Efficiency settings.
Per the above linked article, your Allowed Depletion (AD) essentially represents how frequently your Zone needs to water based on how much moisture you'd like to allow leaving the soil before watering. A higher AD% means less frequent watering.
Efficiency (DU), simplified, affects your watering duration times. A lower Efficiency % means longer watering durations.
Hope this helps! Might not be a bad idea to share pictures of your zones and vegetation types and gather some advice from our other friendly users about what settings might work best for you