HI! We would like to pursue Option 2, path 1 and dimension the rainwater tank for supplying 100% of the irrigation needs. I just came across Equation 7 Percentage Reduction of Total Water (Portable AND reuse, %), which has to be 50% or more. This means, that there has to be a 50% reduction of Design (TWA) compared to Baseline (TWA). The only way to do that is to adjust irrigation efficiency, controller efficiency, species factor, density factor and microclimate factor. Is that correct?