@jsurpless Yeah, one could argue it invalidates the equation. That's why I don't use it and prefer to dial in all of my other setting to achieve the results that I'd like. However, it's a nice "quick fix" sometimes, and it works for those that aren't too worried about the equation and just want a little extra, or less, water per cycle. It sounds like you're in my camp and prefer to have the algorithm parameters dialed in. Maybe play around with some of the root depth settings if you don't like the durations that you have set? First make sure that your precipitation rates and soil type are dialed in first as those would have a significant impact to the baseline watering assumptions.