@petercw2 We don't look back on events that happened before the install of the controller, just forward.
If you choose a fixed schedule (interval/day of week) we will skip during rain events (you can adjust the threshold) and adjust your minutes +/- according to the watering month (seasonal shift). You can take our minutes recommendation (based on watering interval you've chosen), modify as you like, and allow the controller to adjust those minutes each month (that feature, seasonal shift) can be disabled if you like.
Flex monthly schedules in addition to changing your minutes, will change your frequency.
Flex daily schedules will use real-time weather data to dynamically adjust your schedules and will decide every day to water or not. This is the most efficient type of watering, but can be challenge to initially setup since we need fairly close characteristics chosen for zone attributes. Some users have great success with this schedule, for other users it can be challenging and they might migrate back to something more predictable.
Hope this helps, and please let us know if you have any other questions or feedback.